English verb conjugation
CAN CHIRP

Regular verb: chirp - chirped - chirped

Affirmation

Simple form	V-ing form
I can chirp you can chirp he can chirp we can chirp you can chirp they can chirp	I can be chirping you can be chirping he can be chirping we can be chirping you can be chirping they can be chirping
Perfect	V-ing perfect
I can have chirped you can have chirped he can have chirped we can have chirped you can have chirped they can have chirped	I can have been chirping you can have been chirping he can have been chirping we can have been chirping you can have been chirping they can have been chirping

Negation

Simple form	V-ing form
I cannot chirp you cannot chirp he cannot chirp we cannot chirp you cannot chirp they cannot chirp	I cannot be chirping you cannot be chirping he cannot be chirping we cannot be chirping you cannot be chirping they cannot be chirping
Perfect	V-ing perfect
I cannot have chirped you cannot have chirped he cannot have chirped we cannot have chirped you cannot have chirped they cannot have chirped	I cannot have been chirping you cannot have been chirping he cannot have been chirping we cannot have been chirping you cannot have been chirping they cannot have been chirping

Interrogative form

Simple form	V-ing form
can I chirp? can you chirp? can he chirp? can we chirp? can you chirp? can they chirp?	can I be chirping? can you be chirping? can he be chirping? can we be chirping? can you be chirping? can they be chirping?
Perfect	V-ing perfect
can I have chirped? can you have chirped? can he have chirped? can we have chirped? can you have chirped? can they have chirped?	can I have been chirping? can you have been chirping? can he have been chirping? can we have been chirping? can you have been chirping? can they have been chirping?

Interro-negative form

Simple form	V-ing form
can I not chirp? can you not chirp? can he not chirp? can we not chirp? can you not chirp? can they not chirp?	can I not be chirping? can you not be chirping? can he not be chirping? can we not be chirping? can you not be chirping? can they not be chirping?
Perfect	V-ing perfect
can I not have chirped? can you not have chirped? can he not have chirped? can we not have chirped? can you not have chirped? can they not have chirped?	can I not have been chirping? can you not have been chirping? can he not have been chirping? can we not have been chirping? can you not have been chirping? can they not have been chirping?