could intrench
Regular verb: intrench - intrenched- intrenched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could intrench
you could intrench
he could intrench
we could intrench
you could intrench
they could intrench 	I could be intrenching
you could be intrenching
he could be intrenching
we could be intrenching
you could be intrenching
they could be intrenching	I could have intrenched
you could have intrenched
he could have intrenched
we could have intrenched
you could have intrenched
they could have intrenched	I could have been intrenching
you could have been intrenching
he could have been intrenching
we could have been intrenching
you could have been intrenching
they could have been intrenching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't intrench
you couldn't intrench
he couldn't intrench
we couldn't intrench
you couldn't intrench
they couldn't intrench 	I couldn't be intrenching
you couldn't be intrenching
he couldn't be intrenching
we couldn't be intrenching
you couldn't be intrenching
they couldn't be intrenching	I couldn't have intrenched
you couldn't have intrenched
he couldn't have intrenched
we couldn't have intrenched
you couldn't have intrenched
they couldn't have intrenched	I couldn't have been intrenching
you couldn't have been intrenching
he couldn't have been intrenching
we couldn't have been intrenching
you couldn't have been intrenching
they couldn't have been intrenching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I intrench?
could you intrench?
could he intrench?
could we intrench?
could you intrench?
could they intrench? 	could I be intrenching?
could you be intrenching?
could he be intrenching?
could we be intrenching?
could you be intrenching?
could they be intrenching? 	could I have intrenched?
could you have intrenched?
could he have intrenched?
could we have intrenched?
could you have intrenched?
could they have intrenched? 	could I have been intrenching?
could you have been intrenching?
could he have been intrenching?
could we have been intrenching?
could you have been intrenching?
could they have been intrenching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I intrench?
couldn't you intrench?
couldn't he intrench?
couldn't we intrench?
couldn't you intrench?
couldn't they intrench? 	couldn't I be intrenching?
couldn't you be intrenching?
couldn't he be intrenching?
couldn't we be intrenching?
couldn't you be intrenching?
couldn't they be intrenching? 	couldn't I have intrenched?
couldn't you have intrenched?
couldn't he have intrenched?
couldn't we have intrenched?
couldn't you have intrenched?
couldn't they have intrenched? 	couldn't I have been intrenching?
couldn't you have been intrenching?
couldn't he have been intrenching?
couldn't we have been intrenching?
couldn't you have been intrenching?
couldn't they have been intrenching?