Answer in brief
An irregular verb does not build its past tense or past participle with -ed, so you learn three forms: go, went, gone. Wikipedia counts close to 200 in normal use, and the most frequent English verbs are all irregular. Learn the everyday ones first, group them by sound pattern, and review them on a spacing schedule in sentences of your own.
Why some English verbs refuse the -ed ending
Most English verbs follow one rule: add -ed and you have both the past tense and the past participle, as in work, worked, worked. English irregular verbs are the ones that break it. Wikipedia’s article on them puts the point precisely: in most cases the irregularity concerns the past tense or the past participle. Only four verbs, be, do, have and say, also have irregular present forms, according to Wikipedia’s list. That is why learners meet these verbs as three columns: go, went, gone.
The same article gives a count that sounds worse than it is: approaching 200 in normal use, and significantly more if prefixed forms such as become or understand are counted. The group is closed, too. New verbs, including loans and nouns turned into verbs, usually follow the regular pattern, which is why people emailed and texted. And many irregular verbs are irregular only in part: in buy, bought, bought the past and the participle coincide, so one new word fills two columns.
The most frequent verbs are the irregular ones
Irregular verbs are not exotic. Wikipedia states that the dozen most frequently used English verbs are all irregular. A summary of a 2007 study in the journal Nature, published by Harvard’s School of Engineering and Applied Sciences, names the ten most common: be, have, do, go, say, can, will, see, take and get. You cannot write a short email without several of them, which is good news: the verbs to learn first are the ones you hear most.
The same study explains why. The researchers, led by Erez Lieberman and Jean-Baptiste Michel, followed verbs across 1,200 years: of 177 verbs that were irregular in Old English, 145 stayed irregular in Middle English and 98 remain irregular today. Help, laugh, reach, walk and work drifted to -ed. The rate depends on use: a verb used 100 times less often changes 10 times as fast. Rare irregular forms fade, frequent ones survive.
So learn by frequency, not by alphabet. A table in alphabetical order spends your first evening on whatever begins with a, rare or not. Start with the everyday verbs from that top ten and their neighbours, such as make, come, know, think, tell and find. Leave rare forms for later, among them wed, which the Harvard team expects to be the next verb to regularise; Wikipedia’s list already gives both wed and wedded.
Sorting irregular verbs into families by sound
The second way to shrink the table is to stop reading it row by row. Wikipedia’s list describes a few kinds of change: an ending in -t, as in build, bend and send; a change inside the stem, a vowel as in sit, win or hold or a consonant as in teach and seek; and an -n added to the past participle, as in drive, show and rise. Once the families are visible, a new verb usually looks like one you already know.
The easiest family needs almost no learning: cut, cut, cut. Put, hit, let and set behave the same way, with all three forms identical. The next family changes once and then stays: buy, bought, bought; bring, brought, brought; think, thought, thought; teach, taught, taught; catch, caught, caught. Keep, kept, kept and send, sent, sent follow the same two-form logic.
Then come the three-step families, where every form differs. Sing, sang, sung sounds like ring, rang, rung, and drink, drank, drunk and begin, began, begun follow the same i-a-u vowel line. Another group ends its participle in -n or -en: drive, drove, driven; write, wrote, written; take, took, taken. Learn one model verb per family aloud, then attach the others to it. A few verbs fit no family, go, went, gone and be, was, were, been among them, and those are learned one by one.
Learnt or learned, got or gotten: British and American forms
Some verbs have two correct forms, and the choice depends on the variety of English. Wikipedia’s list notes that for spell, learn and spill, American and Canadian English normally use the regular spelled, learned and spilled, while British, Australian, New Zealand and South African English tend to favour spelt, learnt and spilt. With dive and sneak it is the other way round: dove and snuck are the American forms. Dictionary.com adds that learned is the more common past form of learn.
The best-known difference is get. The usage note at Dictionary.com says that in British English got is the regular past participle, and gotten survives only in a few set phrases such as ill-gotten gains, while in American English gotten is an alternative standard participle in most senses. A speaker in London says it has got colder, a speaker in Chicago may say it has gotten colder, and both are right. The rule for a learner is consistency: choose one variety and keep to it within a text.
Where the second and third forms do their work
Knowing three forms helps only if you know which goes where. Wikipedia’s article on English verbs describes the jobs briefly. The past tense form, the second column, is used in the past simple: she went home, they bought a car. The past participle, the third column, is used with the auxiliary have in perfect constructions, as in she has gone, and with be or get to form the passive, as in the car was bought last year. It can also act as an adjective: a broken phone.
A full tour of the tenses is a separate subject. The most frequent slip mixes up these jobs: the second form ends up after have, as in I have went, or the third form stands alone, as in I seen it. A quick test helps. If have, has, had or a form of be stands before the verb, take the third column; if the verb stands alone and speaks of a finished past, take the second.
Spaced repetition keeps the three forms from fading
Cramming the table the night before a test works for the test and fails a week later. Wikipedia describes spaced repetition as an evidence-based learning technique, usually performed with flashcards, and traces it to the German scientist Hermann Ebbinghaus in the 1880s. In practice reviews come back at growing intervals: a verb you recall easily returns later, a verb you got wrong returns soon.
Modern schedulers calculate those intervals. The open-spaced-repetition project describes its Free Spaced Repetition Scheduler, FSRS, as an algorithm based on the DSR model, which tracks three variables of memory: difficulty, stability and retrievability. In the project’s words, the higher the stability, the slower a memory is forgotten. So go, went, gone soon comes back rarely, while a form you keep confusing, such as seek, sought, sought, returns until it settles. Mark each card honestly: produced, or merely recognised.
Recalling each verb in a sentence about your own life
Reading the table again feels like progress, but it mostly trains recognition. Wikipedia’s article on the testing effect describes the alternative: long-term memory improves when part of the learning time is spent retrieving information from memory, and retrieval practice produces less forgetting than studying and restudying. For verbs, retrieval means covering the answer and producing the form yourself, in writing or aloud, before you check it.
The strongest retrieval is a sentence you build about something true. Not a textbook line, but your own: I bought a new phone in May; I have never seen the sea in winter; the contract was signed on Friday. Each sentence puts one form into its real job, and because it describes your life, it has a hook a list cannot give. Say it aloud: read, read, read looks the same in all three columns, yet Wikipedia’s list gives the past forms the vowel /rɛd/, not /riːd/.
Practising irregular verbs alone, and what the 113-day course adds
Much of this can be done alone, starting this week. Write out the everyday verbs, sort them into families, make a card for each and review the cards on a schedule; then write a few true sentences a day and say them aloud. The weak point of studying alone is rarely the verbs themselves; it is the language around them and the discipline of coming back every day.
VITON13 SCHOOL builds that structure into its course English in 113 Days, «Английский за 113 дней» in Russian. It is written for Russian speakers: every explanation is in Russian, so it suits readers who read Russian comfortably. Each of the 113 levels is one day: 13 new words with sound, transcription and an example, a short grammar rule with the typical mistake of Russian speakers, a short text with translation and three questions, dictation and phrase building, your own short writing with a model answer, and a mini-game.
Words return through FSRS spaced repetition, and the lessons ask you to recall rather than reread. The browser voices every word, and where it can recognise speech, the course checks your pronunciation. The first three levels are free, even without signing in, and a free placement test shows where to begin. The 60 lessons of «Английская логика» build a phrase as a chain of questions, the same habit of producing language yourself that works for English irregular verbs.
Practical checklist
- List the everyday irregular verbs you actually use before opening a full alphabetical table.
- Sort that list into families: three identical forms, two identical forms, three different forms.
- Choose British or American forms, learnt or learned, got or gotten, and keep to one in each text.
- Make one card per verb with both past forms, how they sound and a short sentence, and review on schedule.
- Write three true sentences a day: one in the past simple, one with have, one in the passive.
Questions and answers
How many English irregular verbs does a learner really need?
Wikipedia counts close to 200 in normal use, more with prefixed forms. You do not need them all at once: start with everyday verbs such as be, have, do, go, say, see, take and get, then add whole families as you meet them in texts and conversations.
Is it a mistake to write learnt instead of learned?
No, both are standard. American and Canadian English normally use learned, while British, Australian, New Zealand and South African English tend to favour learnt. What looks careless is mixing the two in one text, so pick one variety and stay with it.
Why does the verb read look identical in all three forms?
Because the change is in the sound, not in the spelling. The base form is said with the long vowel of see, the past simple and the participle with the short vowel of red. That is why saying the forms aloud matters as much as writing them down.
Should irregular verbs be learned in alphabetical order?
It is the least helpful order. Frequency matters more, since the most common verbs are irregular and turn up in every conversation. Grouping by sound pattern helps memory as well: a new verb that rhymes with one you know is already half learned.
How often should irregular verb flashcards come back for review?
Let a spaced repetition schedule decide. Forms you recall easily return after longer gaps, forms you get wrong return sooner. Short daily sessions suit this better than one long evening, and each review should make you produce the form rather than simply recognise it.