Can you tell me which of the following sentences is correct? why?
a) He is too young to go to school, is he?
b) He is too young to go to school, isn't he?
Can you tell me which of the following sentences is correct? why?
a) He is too young to go to school, is he?
b) He is too young to go to school, isn't he?
Both are correct, but there a difference in meaning
The first suggests that you are challenging a statement from someone else "He is too young to go to school"
The second, that you are seeking confirmation for the initial statement.