can quake
Regular verb: quake - quaked- quaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can quake
you can quake
she can quake
we can quake
you can quake
they can quake 	I can be quaking
you can be quaking
she can be quaking
we can be quaking
you can be quaking
they can be quaking	I can have quaked
you can have quaked
she can have quaked
we can have quaked
you can have quaked
they can have quaked	I can have been quaking
you can have been quaking
she can have been quaking
we can have been quaking
you can have been quaking
they can have been quaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't quake
you can't quake
she can't quake
we can't quake
you can't quake
they can't quake 	I can't be quaking
you can't be quaking
she can't be quaking
we can't be quaking
you can't be quaking
they can't be quaking	I can't have quaked
you can't have quaked
she can't have quaked
we can't have quaked
you can't have quaked
they can't have quaked	I can't have been quaking
you can't have been quaking
she can't have been quaking
we can't have been quaking
you can't have been quaking
they can't have been quaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I quake?
can you quake?
can she quake?
can we quake?
can you quake?
can they quake? 	can I be quaking?
can you be quaking?
can she be quaking?
can we be quaking?
can you be quaking?
can they be quaking? 	can I have quaked?
can you have quaked?
can she have quaked?
can we have quaked?
can you have quaked?
can they have quaked? 	can I have been quaking?
can you have been quaking?
can she have been quaking?
can we have been quaking?
can you have been quaking?
can they have been quaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I quake?
can't you quake?
can't she quake?
can't we quake?
can't you quake?
can't they quake? 	can't I be quaking?
can't you be quaking?
can't she be quaking?
can't we be quaking?
can't you be quaking?
can't they be quaking? 	can't I have quaked?
can't you have quaked?
can't she have quaked?
can't we have quaked?
can't you have quaked?
can't they have quaked? 	can't I have been quaking?
can't you have been quaking?
can't she have been quaking?
can't we have been quaking?
can't you have been quaking?
can't they have been quaking?