Do not say:
He is very stronger than I am.
Say:
He is much stronger than I am.
Do not say:
It is a much interesting book.
It is a much interesting book.
Say:
It is a very interesting book.
It is a very interesting book.
Do not say:
He is a much strong man.
He is a much strong man.
Say:
He is a very strong man.
He is a very strong man.
Do not say:
John fall down and broke his leg.
John fall down and broke his leg.
Say:
John fell down and broke his leg.
John fell down and broke his leg.