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 can't chirp you can't chirp he can't chirp we can't chirp you can't chirp they can't chirp	I can't be chirping you can't be chirping he can't be chirping we can't be chirping you can't be chirping they can't be chirping
Perfect	V-ing perfect
I can't have chirped you can't have chirped he can't have chirped we can't have chirped you can't have chirped they can't have chirped	I can't have been chirping you can't have been chirping he can't have been chirping we can't have been chirping you can't have been chirping they can't 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't I chirp? can't you chirp? can't he chirp? can't we chirp? can't you chirp? can't they chirp?	can't I be chirping? can't you be chirping? can't he be chirping? can't we be chirping? can't you be chirping? can't they be chirping?
Perfect	V-ing perfect
can't I have chirped? can't you have chirped? can't he have chirped? can't we have chirped? can't you have chirped? can't they have chirped?	can't I have been chirping? can't you have been chirping? can't he have been chirping? can't we have been chirping? can't you have been chirping? can't they have been chirping?