English verb conjugation
CAN TALK

Regular verb: talk - talked - talked

Affirmation

Simple form	V-ing form
I can talk you can talk he can talk we can talk you can talk they can talk	I can be talking you can be talking he can be talking we can be talking you can be talking they can be talking
Perfect	V-ing perfect
I can have talked you can have talked he can have talked we can have talked you can have talked they can have talked	I can have been talking you can have been talking he can have been talking we can have been talking you can have been talking they can have been talking

Negation

Simple form	V-ing form
I can't talk you can't talk he can't talk we can't talk you can't talk they can't talk	I can't be talking you can't be talking he can't be talking we can't be talking you can't be talking they can't be talking
Perfect	V-ing perfect
I can't have talked you can't have talked he can't have talked we can't have talked you can't have talked they can't have talked	I can't have been talking you can't have been talking he can't have been talking we can't have been talking you can't have been talking they can't have been talking

Interrogative form

Simple form	V-ing form
can I talk? can you talk? can he talk? can we talk? can you talk? can they talk?	can I be talking? can you be talking? can he be talking? can we be talking? can you be talking? can they be talking?
Perfect	V-ing perfect
can I have talked? can you have talked? can he have talked? can we have talked? can you have talked? can they have talked?	can I have been talking? can you have been talking? can he have been talking? can we have been talking? can you have been talking? can they have been talking?

Interro-negative form

Simple form	V-ing form
can't I talk? can't you talk? can't he talk? can't we talk? can't you talk? can't they talk?	can't I be talking? can't you be talking? can't he be talking? can't we be talking? can't you be talking? can't they be talking?
Perfect	V-ing perfect
can't I have talked? can't you have talked? can't he have talked? can't we have talked? can't you have talked? can't they have talked?	can't I have been talking? can't you have been talking? can't he have been talking? can't we have been talking? can't you have been talking? can't they have been talking?