could father
Regular verb: father - fathered- fathered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could father
you could father
she could father
we could father
you could father
they could father 	I could be fathering
you could be fathering
she could be fathering
we could be fathering
you could be fathering
they could be fathering	I could have fathered
you could have fathered
she could have fathered
we could have fathered
you could have fathered
they could have fathered	I could have been fathering
you could have been fathering
she could have been fathering
we could have been fathering
you could have been fathering
they could have been fathering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't father
you couldn't father
she couldn't father
we couldn't father
you couldn't father
they couldn't father 	I couldn't be fathering
you couldn't be fathering
she couldn't be fathering
we couldn't be fathering
you couldn't be fathering
they couldn't be fathering	I couldn't have fathered
you couldn't have fathered
she couldn't have fathered
we couldn't have fathered
you couldn't have fathered
they couldn't have fathered	I couldn't have been fathering
you couldn't have been fathering
she couldn't have been fathering
we couldn't have been fathering
you couldn't have been fathering
they couldn't have been fathering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I father?
could you father?
could she father?
could we father?
could you father?
could they father? 	could I be fathering?
could you be fathering?
could she be fathering?
could we be fathering?
could you be fathering?
could they be fathering? 	could I have fathered?
could you have fathered?
could she have fathered?
could we have fathered?
could you have fathered?
could they have fathered? 	could I have been fathering?
could you have been fathering?
could she have been fathering?
could we have been fathering?
could you have been fathering?
could they have been fathering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I father?
couldn't you father?
couldn't she father?
couldn't we father?
couldn't you father?
couldn't they father? 	couldn't I be fathering?
couldn't you be fathering?
couldn't she be fathering?
couldn't we be fathering?
couldn't you be fathering?
couldn't they be fathering? 	couldn't I have fathered?
couldn't you have fathered?
couldn't she have fathered?
couldn't we have fathered?
couldn't you have fathered?
couldn't they have fathered? 	couldn't I have been fathering?
couldn't you have been fathering?
couldn't she have been fathering?
couldn't we have been fathering?
couldn't you have been fathering?
couldn't they have been fathering?