English verb conjugation
CAN TRENCH

Regular verb: trench - trenched - trenched

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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