could acetylate
Regular verb: acetylate - acetylated- acetylated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could acetylate
you could acetylate
he could acetylate
we could acetylate
you could acetylate
they could acetylate 	I could be acetylating
you could be acetylating
he could be acetylating
we could be acetylating
you could be acetylating
they could be acetylating	I could have acetylated
you could have acetylated
he could have acetylated
we could have acetylated
you could have acetylated
they could have acetylated	I could have been acetylating
you could have been acetylating
he could have been acetylating
we could have been acetylating
you could have been acetylating
they could have been acetylating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not acetylate
you could not acetylate
he could not acetylate
we could not acetylate
you could not acetylate
they could not acetylate 	I could not be acetylating
you could not be acetylating
he could not be acetylating
we could not be acetylating
you could not be acetylating
they could not be acetylating	I could not have acetylated
you could not have acetylated
he could not have acetylated
we could not have acetylated
you could not have acetylated
they could not have acetylated	I could not have been acetylating
you could not have been acetylating
he could not have been acetylating
we could not have been acetylating
you could not have been acetylating
they could not have been acetylating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I acetylate?
could you acetylate?
could he acetylate?
could we acetylate?
could you acetylate?
could they acetylate? 	could I be acetylating?
could you be acetylating?
could he be acetylating?
could we be acetylating?
could you be acetylating?
could they be acetylating? 	could I have acetylated?
could you have acetylated?
could he have acetylated?
could we have acetylated?
could you have acetylated?
could they have acetylated? 	could I have been acetylating?
could you have been acetylating?
could he have been acetylating?
could we have been acetylating?
could you have been acetylating?
could they have been acetylating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not acetylate?
could you not acetylate?
could he not acetylate?
could we not acetylate?
could you not acetylate?
could they not acetylate? 	could I not be acetylating?
could you not be acetylating?
could he not be acetylating?
could we not be acetylating?
could you not be acetylating?
could they not be acetylating? 	could I not have acetylated?
could you not have acetylated?
could he not have acetylated?
could we not have acetylated?
could you not have acetylated?
could they not have acetylated? 	could I not have been acetylating?
could you not have been acetylating?
could he not have been acetylating?
could we not have been acetylating?
could you not have been acetylating?
could they not have been acetylating?