English verb conjugation
MUST INTRENCH

Regular verb: intrench - intrenched - intrenched

Affirmation

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

Negation

Simple form	V-ing form
I must not intrench you must not intrench he must not intrench we must not intrench you must not intrench they must not intrench	I must not be intrenching you must not be intrenching he must not be intrenching we must not be intrenching you must not be intrenching they must not be intrenching
Perfect	V-ing perfect
I must not have intrenched you must not have intrenched he must not have intrenched we must not have intrenched you must not have intrenched they must not have intrenched	I must not have been intrenching you must not have been intrenching he must not have been intrenching we must not have been intrenching you must not have been intrenching they must not have been intrenching

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not intrench? must you not intrench? must he not intrench? must we not intrench? must you not intrench? must they not intrench?	must I not be intrenching? must you not be intrenching? must he not be intrenching? must we not be intrenching? must you not be intrenching? must they not be intrenching?
Perfect	V-ing perfect
must I not have intrenched? must you not have intrenched? must he not have intrenched? must we not have intrenched? must you not have intrenched? must they not have intrenched?	must I not have been intrenching? must you not have been intrenching? must he not have been intrenching? must we not have been intrenching? must you not have been intrenching? must they not have been intrenching?