could pancake
Regular verb: pancake - pancaked- pancaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could pancake
you could pancake
she could pancake
we could pancake
you could pancake
they could pancake 	I could be pancaking
you could be pancaking
she could be pancaking
we could be pancaking
you could be pancaking
they could be pancaking	I could have pancaked
you could have pancaked
she could have pancaked
we could have pancaked
you could have pancaked
they could have pancaked	I could have been pancaking
you could have been pancaking
she could have been pancaking
we could have been pancaking
you could have been pancaking
they could have been pancaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't pancake
you couldn't pancake
she couldn't pancake
we couldn't pancake
you couldn't pancake
they couldn't pancake 	I couldn't be pancaking
you couldn't be pancaking
she couldn't be pancaking
we couldn't be pancaking
you couldn't be pancaking
they couldn't be pancaking	I couldn't have pancaked
you couldn't have pancaked
she couldn't have pancaked
we couldn't have pancaked
you couldn't have pancaked
they couldn't have pancaked	I couldn't have been pancaking
you couldn't have been pancaking
she couldn't have been pancaking
we couldn't have been pancaking
you couldn't have been pancaking
they couldn't have been pancaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I pancake?
could you pancake?
could she pancake?
could we pancake?
could you pancake?
could they pancake? 	could I be pancaking?
could you be pancaking?
could she be pancaking?
could we be pancaking?
could you be pancaking?
could they be pancaking? 	could I have pancaked?
could you have pancaked?
could she have pancaked?
could we have pancaked?
could you have pancaked?
could they have pancaked? 	could I have been pancaking?
could you have been pancaking?
could she have been pancaking?
could we have been pancaking?
could you have been pancaking?
could they have been pancaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I pancake?
couldn't you pancake?
couldn't she pancake?
couldn't we pancake?
couldn't you pancake?
couldn't they pancake? 	couldn't I be pancaking?
couldn't you be pancaking?
couldn't she be pancaking?
couldn't we be pancaking?
couldn't you be pancaking?
couldn't they be pancaking? 	couldn't I have pancaked?
couldn't you have pancaked?
couldn't she have pancaked?
couldn't we have pancaked?
couldn't you have pancaked?
couldn't they have pancaked? 	couldn't I have been pancaking?
couldn't you have been pancaking?
couldn't she have been pancaking?
couldn't we have been pancaking?
couldn't you have been pancaking?
couldn't they have been pancaking?