could acerbate
Regular verb: acerbate - acerbated- acerbated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could acerbate
you could acerbate
she could acerbate
we could acerbate
you could acerbate
they could acerbate 	I could be acerbating
you could be acerbating
she could be acerbating
we could be acerbating
you could be acerbating
they could be acerbating	I could have acerbated
you could have acerbated
she could have acerbated
we could have acerbated
you could have acerbated
they could have acerbated	I could have been acerbating
you could have been acerbating
she could have been acerbating
we could have been acerbating
you could have been acerbating
they could have been acerbating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not acerbate
you could not acerbate
she could not acerbate
we could not acerbate
you could not acerbate
they could not acerbate 	I could not be acerbating
you could not be acerbating
she could not be acerbating
we could not be acerbating
you could not be acerbating
they could not be acerbating	I could not have acerbated
you could not have acerbated
she could not have acerbated
we could not have acerbated
you could not have acerbated
they could not have acerbated	I could not have been acerbating
you could not have been acerbating
she could not have been acerbating
we could not have been acerbating
you could not have been acerbating
they could not have been acerbating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I acerbate?
could you acerbate?
could she acerbate?
could we acerbate?
could you acerbate?
could they acerbate? 	could I be acerbating?
could you be acerbating?
could she be acerbating?
could we be acerbating?
could you be acerbating?
could they be acerbating? 	could I have acerbated?
could you have acerbated?
could she have acerbated?
could we have acerbated?
could you have acerbated?
could they have acerbated? 	could I have been acerbating?
could you have been acerbating?
could she have been acerbating?
could we have been acerbating?
could you have been acerbating?
could they have been acerbating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not acerbate?
could you not acerbate?
could she not acerbate?
could we not acerbate?
could you not acerbate?
could they not acerbate? 	could I not be acerbating?
could you not be acerbating?
could she not be acerbating?
could we not be acerbating?
could you not be acerbating?
could they not be acerbating? 	could I not have acerbated?
could you not have acerbated?
could she not have acerbated?
could we not have acerbated?
could you not have acerbated?
could they not have acerbated? 	could I not have been acerbating?
could you not have been acerbating?
could she not have been acerbating?
could we not have been acerbating?
could you not have been acerbating?
could they not have been acerbating?