English verb conjugation
CAN NARROW

Regular verb: narrow - narrowed - narrowed

Affirmation

Simple form	V-ing form
I can narrow you can narrow he can narrow we can narrow you can narrow they can narrow	I can be narrowing you can be narrowing he can be narrowing we can be narrowing you can be narrowing they can be narrowing
Perfect	V-ing perfect
I can have narrowed you can have narrowed he can have narrowed we can have narrowed you can have narrowed they can have narrowed	I can have been narrowing you can have been narrowing he can have been narrowing we can have been narrowing you can have been narrowing they can have been narrowing

Negation

Simple form	V-ing form
I cannot narrow you cannot narrow he cannot narrow we cannot narrow you cannot narrow they cannot narrow	I cannot be narrowing you cannot be narrowing he cannot be narrowing we cannot be narrowing you cannot be narrowing they cannot be narrowing
Perfect	V-ing perfect
I cannot have narrowed you cannot have narrowed he cannot have narrowed we cannot have narrowed you cannot have narrowed they cannot have narrowed	I cannot have been narrowing you cannot have been narrowing he cannot have been narrowing we cannot have been narrowing you cannot have been narrowing they cannot have been narrowing

Interrogative form

Simple form	V-ing form
can I narrow? can you narrow? can he narrow? can we narrow? can you narrow? can they narrow?	can I be narrowing? can you be narrowing? can he be narrowing? can we be narrowing? can you be narrowing? can they be narrowing?
Perfect	V-ing perfect
can I have narrowed? can you have narrowed? can he have narrowed? can we have narrowed? can you have narrowed? can they have narrowed?	can I have been narrowing? can you have been narrowing? can he have been narrowing? can we have been narrowing? can you have been narrowing? can they have been narrowing?

Interro-negative form

Simple form	V-ing form
can I not narrow? can you not narrow? can he not narrow? can we not narrow? can you not narrow? can they not narrow?	can I not be narrowing? can you not be narrowing? can he not be narrowing? can we not be narrowing? can you not be narrowing? can they not be narrowing?
Perfect	V-ing perfect
can I not have narrowed? can you not have narrowed? can he not have narrowed? can we not have narrowed? can you not have narrowed? can they not have narrowed?	can I not have been narrowing? can you not have been narrowing? can he not have been narrowing? can we not have been narrowing? can you not have been narrowing? can they not have been narrowing?