English verb conjugation
CAN CHAT

Regular verb: chat - chatted - chatted

Affirmation

Simple form	V-ing form
I can chat you can chat she can chat we can chat you can chat they can chat	I can be chatting you can be chatting she can be chatting we can be chatting you can be chatting they can be chatting
Perfect	V-ing perfect
I can have chatted you can have chatted she can have chatted we can have chatted you can have chatted they can have chatted	I can have been chatting you can have been chatting she can have been chatting we can have been chatting you can have been chatting they can have been chatting

Negation

Simple form	V-ing form
I cannot chat you cannot chat she cannot chat we cannot chat you cannot chat they cannot chat	I cannot be chatting you cannot be chatting she cannot be chatting we cannot be chatting you cannot be chatting they cannot be chatting
Perfect	V-ing perfect
I cannot have chatted you cannot have chatted she cannot have chatted we cannot have chatted you cannot have chatted they cannot have chatted	I cannot have been chatting you cannot have been chatting she cannot have been chatting we cannot have been chatting you cannot have been chatting they cannot have been chatting

Interrogative form

Simple form	V-ing form
can I chat? can you chat? can she chat? can we chat? can you chat? can they chat?	can I be chatting? can you be chatting? can she be chatting? can we be chatting? can you be chatting? can they be chatting?
Perfect	V-ing perfect
can I have chatted? can you have chatted? can she have chatted? can we have chatted? can you have chatted? can they have chatted?	can I have been chatting? can you have been chatting? can she have been chatting? can we have been chatting? can you have been chatting? can they have been chatting?

Interro-negative form

Simple form	V-ing form
can I not chat? can you not chat? can she not chat? can we not chat? can you not chat? can they not chat?	can I not be chatting? can you not be chatting? can she not be chatting? can we not be chatting? can you not be chatting? can they not be chatting?
Perfect	V-ing perfect
can I not have chatted? can you not have chatted? can she not have chatted? can we not have chatted? can you not have chatted? can they not have chatted?	can I not have been chatting? can you not have been chatting? can she not have been chatting? can we not have been chatting? can you not have been chatting? can they not have been chatting?