Look at the verbs. give their three forms. write them into two groups: regular verbs, irregular verbs. вот глаголы: to be, to laugh, to build, to study, to become, to happen, to burn, to describe, to read, to lock, to lead, to ...

Irregular: to be ( was/were, been), build ( built, built), to become ( became, become), to burn ( butnr, burnt), to read ( read, read), to lead (led, led), to come (came, come), to keep ( kept, kept), to learn ( learnt,learnt ), to take ( took, taken), to say ( said, said), to go ( went, gone), to get (got,got), to know ( knew, known), to hear ( heard, heard), to do ( did, done). regular: to laugh, to study, to happen, to describe, to lock, to count, to work, to join, to wake up.