What is an Irregular Verb (Strong Verb)?

The main verbs, which derive their past and past participle forms by undergoing a change in their constituent vowels such that two or all the three forms are dissimilar, are called Strong or Irregular Verbs.


Base Form
Past Simple
Past Participle
awake awoke awoken
begin began begun
choose chose chosen
dig dug dug
eat ate eaten
fall fell fallen
go went gone
have had had
know knew known
lay laid laid
make made made
pay paid paid
read read read
say said said
take took taken
understand understood understood
wake woke woken

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