could enlist
Regular verb: enlist - enlisted- enlisted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could enlist
you could enlist
he could enlist
we could enlist
you could enlist
they could enlist 	I could be enlisting
you could be enlisting
he could be enlisting
we could be enlisting
you could be enlisting
they could be enlisting	I could have enlisted
you could have enlisted
he could have enlisted
we could have enlisted
you could have enlisted
they could have enlisted	I could have been enlisting
you could have been enlisting
he could have been enlisting
we could have been enlisting
you could have been enlisting
they could have been enlisting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't enlist
you couldn't enlist
he couldn't enlist
we couldn't enlist
you couldn't enlist
they couldn't enlist 	I couldn't be enlisting
you couldn't be enlisting
he couldn't be enlisting
we couldn't be enlisting
you couldn't be enlisting
they couldn't be enlisting	I couldn't have enlisted
you couldn't have enlisted
he couldn't have enlisted
we couldn't have enlisted
you couldn't have enlisted
they couldn't have enlisted	I couldn't have been enlisting
you couldn't have been enlisting
he couldn't have been enlisting
we couldn't have been enlisting
you couldn't have been enlisting
they couldn't have been enlisting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I enlist?
could you enlist?
could he enlist?
could we enlist?
could you enlist?
could they enlist? 	could I be enlisting?
could you be enlisting?
could he be enlisting?
could we be enlisting?
could you be enlisting?
could they be enlisting? 	could I have enlisted?
could you have enlisted?
could he have enlisted?
could we have enlisted?
could you have enlisted?
could they have enlisted? 	could I have been enlisting?
could you have been enlisting?
could he have been enlisting?
could we have been enlisting?
could you have been enlisting?
could they have been enlisting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I enlist?
couldn't you enlist?
couldn't he enlist?
couldn't we enlist?
couldn't you enlist?
couldn't they enlist? 	couldn't I be enlisting?
couldn't you be enlisting?
couldn't he be enlisting?
couldn't we be enlisting?
couldn't you be enlisting?
couldn't they be enlisting? 	couldn't I have enlisted?
couldn't you have enlisted?
couldn't he have enlisted?
couldn't we have enlisted?
couldn't you have enlisted?
couldn't they have enlisted? 	couldn't I have been enlisting?
couldn't you have been enlisting?
couldn't he have been enlisting?
couldn't we have been enlisting?
couldn't you have been enlisting?
couldn't they have been enlisting?