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 can't trench you can't trench he can't trench we can't trench you can't trench they can't trench	I can't be trenching you can't be trenching he can't be trenching we can't be trenching you can't be trenching they can't be trenching
Perfect	V-ing perfect
I can't have trenched you can't have trenched he can't have trenched we can't have trenched you can't have trenched they can't have trenched	I can't have been trenching you can't have been trenching he can't have been trenching we can't have been trenching you can't have been trenching they can't 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't I trench? can't you trench? can't he trench? can't we trench? can't you trench? can't they trench?	can't I be trenching? can't you be trenching? can't he be trenching? can't we be trenching? can't you be trenching? can't they be trenching?
Perfect	V-ing perfect
can't I have trenched? can't you have trenched? can't he have trenched? can't we have trenched? can't you have trenched? can't they have trenched?	can't I have been trenching? can't you have been trenching? can't he have been trenching? can't we have been trenching? can't you have been trenching? can't they have been trenching?