English verb conjugation
MUST TRENCH

Regular verb: trench - trenched - trenched

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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