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 could not abut
you could not abut
he could not abut
we could not abut
you could not abut
they could not abut 	I could not be abuting
you could not be abuting
he could not be abuting
we could not be abuting
you could not be abuting
they could not be abuting	I could not have abuted
you could not have abuted
he could not have abuted
we could not have abuted
you could not have abuted
they could not have abuted	I could not have been abuting
you could not have been abuting
he could not have been abuting
we could not have been abuting
you could not have been abuting
they could not 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 	
could I not abut?
could you not abut?
could he not abut?
could we not abut?
could you not abut?
could they not abut? 	could I not be abuting?
could you not be abuting?
could he not be abuting?
could we not be abuting?
could you not be abuting?
could they not be abuting? 	could I not have abuted?
could you not have abuted?
could he not have abuted?
could we not have abuted?
could you not have abuted?
could they not have abuted? 	could I not have been abuting?
could you not have been abuting?
could he not have been abuting?
could we not have been abuting?
could you not have been abuting?
could they not have been abuting?