could pancake
Verbo regular: pancake - pancaked- pancaked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could pancake
you could pancake
he could pancake
we could pancake
you could pancake
they could pancake 	I could be pancaking
you could be pancaking
he could be pancaking
we could be pancaking
you could be pancaking
they could be pancaking	I could have pancaked
you could have pancaked
he 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
he could have been pancaking
we could have been pancaking
you could have been pancaking
they could have been pancaking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't pancake
you couldn't pancake
he 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
he 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
he 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
he couldn't have been pancaking
we couldn't have been pancaking
you couldn't have been pancaking
they couldn't have been pancaking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I pancake?
could you pancake?
could he pancake?
could we pancake?
could you pancake?
could they pancake? 	could I be pancaking?
could you be pancaking?
could he be pancaking?
could we be pancaking?
could you be pancaking?
could they be pancaking? 	could I have pancaked?
could you have pancaked?
could he 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 he have been pancaking?
could we have been pancaking?
could you have been pancaking?
could they have been pancaking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I pancake?
couldn't you pancake?
couldn't he 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 he 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 he 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 he have been pancaking?
couldn't we have been pancaking?
couldn't you have been pancaking?
couldn't they have been pancaking?