could bitt
Regular verb: bitt - bitted- bitted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bitt
you could bitt
he could bitt
we could bitt
you could bitt
they could bitt 	I could be bitting
you could be bitting
he could be bitting
we could be bitting
you could be bitting
they could be bitting	I could have bitted
you could have bitted
he could have bitted
we could have bitted
you could have bitted
they could have bitted	I could have been bitting
you could have been bitting
he could have been bitting
we could have been bitting
you could have been bitting
they could have been bitting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bitt
you couldn't bitt
he couldn't bitt
we couldn't bitt
you couldn't bitt
they couldn't bitt 	I couldn't be bitting
you couldn't be bitting
he couldn't be bitting
we couldn't be bitting
you couldn't be bitting
they couldn't be bitting	I couldn't have bitted
you couldn't have bitted
he couldn't have bitted
we couldn't have bitted
you couldn't have bitted
they couldn't have bitted	I couldn't have been bitting
you couldn't have been bitting
he couldn't have been bitting
we couldn't have been bitting
you couldn't have been bitting
they couldn't have been bitting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bitt?
could you bitt?
could he bitt?
could we bitt?
could you bitt?
could they bitt? 	could I be bitting?
could you be bitting?
could he be bitting?
could we be bitting?
could you be bitting?
could they be bitting? 	could I have bitted?
could you have bitted?
could he have bitted?
could we have bitted?
could you have bitted?
could they have bitted? 	could I have been bitting?
could you have been bitting?
could he have been bitting?
could we have been bitting?
could you have been bitting?
could they have been bitting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bitt?
couldn't you bitt?
couldn't he bitt?
couldn't we bitt?
couldn't you bitt?
couldn't they bitt? 	couldn't I be bitting?
couldn't you be bitting?
couldn't he be bitting?
couldn't we be bitting?
couldn't you be bitting?
couldn't they be bitting? 	couldn't I have bitted?
couldn't you have bitted?
couldn't he have bitted?
couldn't we have bitted?
couldn't you have bitted?
couldn't they have bitted? 	couldn't I have been bitting?
couldn't you have been bitting?
couldn't he have been bitting?
couldn't we have been bitting?
couldn't you have been bitting?
couldn't they have been bitting?