can quaff
Regular verb: quaff - quaffed- quaffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can quaff
you can quaff
she can quaff
we can quaff
you can quaff
they can quaff 	I can be quaffing
you can be quaffing
she can be quaffing
we can be quaffing
you can be quaffing
they can be quaffing	I can have quaffed
you can have quaffed
she can have quaffed
we can have quaffed
you can have quaffed
they can have quaffed	I can have been quaffing
you can have been quaffing
she can have been quaffing
we can have been quaffing
you can have been quaffing
they can have been quaffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't quaff
you can't quaff
she can't quaff
we can't quaff
you can't quaff
they can't quaff 	I can't be quaffing
you can't be quaffing
she can't be quaffing
we can't be quaffing
you can't be quaffing
they can't be quaffing	I can't have quaffed
you can't have quaffed
she can't have quaffed
we can't have quaffed
you can't have quaffed
they can't have quaffed	I can't have been quaffing
you can't have been quaffing
she can't have been quaffing
we can't have been quaffing
you can't have been quaffing
they can't have been quaffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I quaff?
can you quaff?
can she quaff?
can we quaff?
can you quaff?
can they quaff? 	can I be quaffing?
can you be quaffing?
can she be quaffing?
can we be quaffing?
can you be quaffing?
can they be quaffing? 	can I have quaffed?
can you have quaffed?
can she have quaffed?
can we have quaffed?
can you have quaffed?
can they have quaffed? 	can I have been quaffing?
can you have been quaffing?
can she have been quaffing?
can we have been quaffing?
can you have been quaffing?
can they have been quaffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I quaff?
can't you quaff?
can't she quaff?
can't we quaff?
can't you quaff?
can't they quaff? 	can't I be quaffing?
can't you be quaffing?
can't she be quaffing?
can't we be quaffing?
can't you be quaffing?
can't they be quaffing? 	can't I have quaffed?
can't you have quaffed?
can't she have quaffed?
can't we have quaffed?
can't you have quaffed?
can't they have quaffed? 	can't I have been quaffing?
can't you have been quaffing?
can't she have been quaffing?
can't we have been quaffing?
can't you have been quaffing?
can't they have been quaffing?