I can hesitate you can hesitate he can hesitate we can hesitate you can hesitate they can hesitate
V-ing form
I can be hesitating you can be hesitating he can be hesitating we can be hesitating you can be hesitating they can be hesitating
Perfect
I can have hesitated you can have hesitated he can have hesitated we can have hesitated you can have hesitated they can have hesitated
V-ing perfect
I can have been hesitating you can have been hesitating he can have been hesitating we can have been hesitating you can have been hesitating they can have been hesitating
Negation
Simple form
I cannot hesitate you cannot hesitate he cannot hesitate we cannot hesitate you cannot hesitate they cannot hesitate
V-ing form
I cannot be hesitating you cannot be hesitating he cannot be hesitating we cannot be hesitating you cannot be hesitating they cannot be hesitating
Perfect
I cannot have hesitated you cannot have hesitated he cannot have hesitated we cannot have hesitated you cannot have hesitated they cannot have hesitated
V-ing perfect
I cannot have been hesitating you cannot have been hesitating he cannot have been hesitating we cannot have been hesitating you cannot have been hesitating they cannot have been hesitating
Interrogative form
Simple form
can I hesitate? can you hesitate? can he hesitate? can we hesitate? can you hesitate? can they hesitate?
V-ing form
can I be hesitating? can you be hesitating? can he be hesitating? can we be hesitating? can you be hesitating? can they be hesitating?
Perfect
can I have hesitated? can you have hesitated? can he have hesitated? can we have hesitated? can you have hesitated? can they have hesitated?
V-ing perfect
can I have been hesitating? can you have been hesitating? can he have been hesitating? can we have been hesitating? can you have been hesitating? can they have been hesitating?
Interro-negative form
Simple form
can I not hesitate? can you not hesitate? can he not hesitate? can we not hesitate? can you not hesitate? can they not hesitate?
V-ing form
can I not be hesitating? can you not be hesitating? can he not be hesitating? can we not be hesitating? can you not be hesitating? can they not be hesitating?
Perfect
can I not have hesitated? can you not have hesitated? can he not have hesitated? can we not have hesitated? can you not have hesitated? can they not have hesitated?
V-ing perfect
can I not have been hesitating? can you not have been hesitating? can he not have been hesitating? can we not have been hesitating? can you not have been hesitating? can they not have been hesitating?