Regular Verbs
I listened to music
I listen to music
He drinked a cola.
He drank a cola
I bought some bread
I buy some bread
She goed to the cinema.
She went to the cinema.
They took a bus home
They take a bus home
He didn't had a dog.
He didn't have a dog.
He saw his friend
He sees his friend
He written many letters.
He wrote many letters.
study
studied
am / is / are
was / was / were
He read a book
He reads a book
Did they bought 3 pens?
Did they buy 3 pens?