could coacervate
Regular verb: coacervate - coacervated- coacervated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could coacervate
you could coacervate
she could coacervate
we could coacervate
you could coacervate
they could coacervate 	I could be coacervating
you could be coacervating
she could be coacervating
we could be coacervating
you could be coacervating
they could be coacervating	I could have coacervated
you could have coacervated
she could have coacervated
we could have coacervated
you could have coacervated
they could have coacervated	I could have been coacervating
you could have been coacervating
she could have been coacervating
we could have been coacervating
you could have been coacervating
they could have been coacervating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't coacervate
you couldn't coacervate
she couldn't coacervate
we couldn't coacervate
you couldn't coacervate
they couldn't coacervate 	I couldn't be coacervating
you couldn't be coacervating
she couldn't be coacervating
we couldn't be coacervating
you couldn't be coacervating
they couldn't be coacervating	I couldn't have coacervated
you couldn't have coacervated
she couldn't have coacervated
we couldn't have coacervated
you couldn't have coacervated
they couldn't have coacervated	I couldn't have been coacervating
you couldn't have been coacervating
she couldn't have been coacervating
we couldn't have been coacervating
you couldn't have been coacervating
they couldn't have been coacervating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I coacervate?
could you coacervate?
could she coacervate?
could we coacervate?
could you coacervate?
could they coacervate? 	could I be coacervating?
could you be coacervating?
could she be coacervating?
could we be coacervating?
could you be coacervating?
could they be coacervating? 	could I have coacervated?
could you have coacervated?
could she have coacervated?
could we have coacervated?
could you have coacervated?
could they have coacervated? 	could I have been coacervating?
could you have been coacervating?
could she have been coacervating?
could we have been coacervating?
could you have been coacervating?
could they have been coacervating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I coacervate?
couldn't you coacervate?
couldn't she coacervate?
couldn't we coacervate?
couldn't you coacervate?
couldn't they coacervate? 	couldn't I be coacervating?
couldn't you be coacervating?
couldn't she be coacervating?
couldn't we be coacervating?
couldn't you be coacervating?
couldn't they be coacervating? 	couldn't I have coacervated?
couldn't you have coacervated?
couldn't she have coacervated?
couldn't we have coacervated?
couldn't you have coacervated?
couldn't they have coacervated? 	couldn't I have been coacervating?
couldn't you have been coacervating?
couldn't she have been coacervating?
couldn't we have been coacervating?
couldn't you have been coacervating?
couldn't they have been coacervating?