could abut
Regular verb: abut - abuted- abuted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could abut
you could abut
he could abut
we could abut
you could abut
they could abut 	I could be abuting
you could be abuting
he could be abuting
we could be abuting
you could be abuting
they could be abuting	I could have abuted
you could have abuted
he could have abuted
we could have abuted
you could have abuted
they could have abuted	I could have been abuting
you could have been abuting
he could have been abuting
we could have been abuting
you could have been abuting
they could have been abuting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't abut
you couldn't abut
he couldn't abut
we couldn't abut
you couldn't abut
they couldn't abut 	I couldn't be abuting
you couldn't be abuting
he couldn't be abuting
we couldn't be abuting
you couldn't be abuting
they couldn't be abuting	I couldn't have abuted
you couldn't have abuted
he couldn't have abuted
we couldn't have abuted
you couldn't have abuted
they couldn't have abuted	I couldn't have been abuting
you couldn't have been abuting
he couldn't have been abuting
we couldn't have been abuting
you couldn't have been abuting
they couldn't have been abuting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I abut?
could you abut?
could he abut?
could we abut?
could you abut?
could they abut? 	could I be abuting?
could you be abuting?
could he be abuting?
could we be abuting?
could you be abuting?
could they be abuting? 	could I have abuted?
could you have abuted?
could he have abuted?
could we have abuted?
could you have abuted?
could they have abuted? 	could I have been abuting?
could you have been abuting?
could he have been abuting?
could we have been abuting?
could you have been abuting?
could they have been abuting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I abut?
couldn't you abut?
couldn't he abut?
couldn't we abut?
couldn't you abut?
couldn't they abut? 	couldn't I be abuting?
couldn't you be abuting?
couldn't he be abuting?
couldn't we be abuting?
couldn't you be abuting?
couldn't they be abuting? 	couldn't I have abuted?
couldn't you have abuted?
couldn't he have abuted?
couldn't we have abuted?
couldn't you have abuted?
couldn't they have abuted? 	couldn't I have been abuting?
couldn't you have been abuting?
couldn't he have been abuting?
couldn't we have been abuting?
couldn't you have been abuting?
couldn't they have been abuting?