English verb conjugation
COULD TRENCH

Regular verb: trench - trenched - trenched

Affirmation

Simple form	V-ing form
I could trench you could trench he could trench we could trench you could trench they could trench	I could be trenching you could be trenching he could be trenching we could be trenching you could be trenching they could be trenching
Perfect	V-ing perfect
I could have trenched you could have trenched he could have trenched we could have trenched you could have trenched they could have trenched	I could have been trenching you could have been trenching he could have been trenching we could have been trenching you could have been trenching they could have been trenching

Negation

Simple form	V-ing form
I could not trench you could not trench he could not trench we could not trench you could not trench they could not trench	I could not be trenching you could not be trenching he could not be trenching we could not be trenching you could not be trenching they could not be trenching
Perfect	V-ing perfect
I could not have trenched you could not have trenched he could not have trenched we could not have trenched you could not have trenched they could not have trenched	I could not have been trenching you could not have been trenching he could not have been trenching we could not have been trenching you could not have been trenching they could not have been trenching

Interrogative form

Simple form	V-ing form
could I trench? could you trench? could he trench? could we trench? could you trench? could they trench?	could I be trenching? could you be trenching? could he be trenching? could we be trenching? could you be trenching? could they be trenching?
Perfect	V-ing perfect
could I have trenched? could you have trenched? could he have trenched? could we have trenched? could you have trenched? could they have trenched?	could I have been trenching? could you have been trenching? could he have been trenching? could we have been trenching? could you have been trenching? could they have been trenching?

Interro-negative form

Simple form	V-ing form
could I not trench? could you not trench? could he not trench? could we not trench? could you not trench? could they not trench?	could I not be trenching? could you not be trenching? could he not be trenching? could we not be trenching? could you not be trenching? could they not be trenching?
Perfect	V-ing perfect
could I not have trenched? could you not have trenched? could he not have trenched? could we not have trenched? could you not have trenched? could they not have trenched?	could I not have been trenching? could you not have been trenching? could he not have been trenching? could we not have been trenching? could you not have been trenching? could they not have been trenching?