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 can't chat you can't chat she can't chat we can't chat you can't chat they can't chat	I can't be chatting you can't be chatting she can't be chatting we can't be chatting you can't be chatting they can't be chatting
Perfect	V-ing perfect
I can't have chatted you can't have chatted she can't have chatted we can't have chatted you can't have chatted they can't have chatted	I can't have been chatting you can't have been chatting she can't have been chatting we can't have been chatting you can't have been chatting they can't 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't I chat? can't you chat? can't she chat? can't we chat? can't you chat? can't they chat?	can't I be chatting? can't you be chatting? can't she be chatting? can't we be chatting? can't you be chatting? can't they be chatting?
Perfect	V-ing perfect
can't I have chatted? can't you have chatted? can't she have chatted? can't we have chatted? can't you have chatted? can't they have chatted?	can't I have been chatting? can't you have been chatting? can't she have been chatting? can't we have been chatting? can't you have been chatting? can't they have been chatting?