could prebake
Regular verb: prebake - prebaked- prebaked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prebake
you could prebake
he could prebake
we could prebake
you could prebake
they could prebake 	I could be prebaking
you could be prebaking
he could be prebaking
we could be prebaking
you could be prebaking
they could be prebaking	I could have prebaked
you could have prebaked
he could have prebaked
we could have prebaked
you could have prebaked
they could have prebaked	I could have been prebaking
you could have been prebaking
he could have been prebaking
we could have been prebaking
you could have been prebaking
they could have been prebaking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't prebake
you couldn't prebake
he couldn't prebake
we couldn't prebake
you couldn't prebake
they couldn't prebake 	I couldn't be prebaking
you couldn't be prebaking
he couldn't be prebaking
we couldn't be prebaking
you couldn't be prebaking
they couldn't be prebaking	I couldn't have prebaked
you couldn't have prebaked
he couldn't have prebaked
we couldn't have prebaked
you couldn't have prebaked
they couldn't have prebaked	I couldn't have been prebaking
you couldn't have been prebaking
he couldn't have been prebaking
we couldn't have been prebaking
you couldn't have been prebaking
they couldn't have been prebaking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prebake?
could you prebake?
could he prebake?
could we prebake?
could you prebake?
could they prebake? 	could I be prebaking?
could you be prebaking?
could he be prebaking?
could we be prebaking?
could you be prebaking?
could they be prebaking? 	could I have prebaked?
could you have prebaked?
could he have prebaked?
could we have prebaked?
could you have prebaked?
could they have prebaked? 	could I have been prebaking?
could you have been prebaking?
could he have been prebaking?
could we have been prebaking?
could you have been prebaking?
could they have been prebaking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I prebake?
couldn't you prebake?
couldn't he prebake?
couldn't we prebake?
couldn't you prebake?
couldn't they prebake? 	couldn't I be prebaking?
couldn't you be prebaking?
couldn't he be prebaking?
couldn't we be prebaking?
couldn't you be prebaking?
couldn't they be prebaking? 	couldn't I have prebaked?
couldn't you have prebaked?
couldn't he have prebaked?
couldn't we have prebaked?
couldn't you have prebaked?
couldn't they have prebaked? 	couldn't I have been prebaking?
couldn't you have been prebaking?
couldn't he have been prebaking?
couldn't we have been prebaking?
couldn't you have been prebaking?
couldn't they have been prebaking?