Be :
1 I am man
2 My friend is John
3 I was child
4 My teacher is the best
have got:
1 I have got a computer
2 he has got a cat
3 she has got a book
4 we have got a car
can:
1 we can play football
2 she can swimming
3 they can read
4 it can fly
there is/are
1 there is a kitchen at home
2 there are children at school
3 there is a chair at office
4 there is a book on the table