I must overstretch you must overstretch he must overstretch we must overstretch you must overstretch they must overstretch
V-ing form
I must be overstretching you must be overstretching he must be overstretching we must be overstretching you must be overstretching they must be overstretching
Perfect
I must have overstretched you must have overstretched he must have overstretched we must have overstretched you must have overstretched they must have overstretched
V-ing perfect
I must have been overstretching you must have been overstretching he must have been overstretching we must have been overstretching you must have been overstretching they must have been overstretching
Negation
Simple form
I must not overstretch you must not overstretch he must not overstretch we must not overstretch you must not overstretch they must not overstretch
V-ing form
I must not be overstretching you must not be overstretching he must not be overstretching we must not be overstretching you must not be overstretching they must not be overstretching
Perfect
I must not have overstretched you must not have overstretched he must not have overstretched we must not have overstretched you must not have overstretched they must not have overstretched
V-ing perfect
I must not have been overstretching you must not have been overstretching he must not have been overstretching we must not have been overstretching you must not have been overstretching they must not have been overstretching
Interrogative form
Simple form
must I overstretch? must you overstretch? must he overstretch? must we overstretch? must you overstretch? must they overstretch?
V-ing form
must I be overstretching? must you be overstretching? must he be overstretching? must we be overstretching? must you be overstretching? must they be overstretching?
Perfect
must I have overstretched? must you have overstretched? must he have overstretched? must we have overstretched? must you have overstretched? must they have overstretched?
V-ing perfect
must I have been overstretching? must you have been overstretching? must he have been overstretching? must we have been overstretching? must you have been overstretching? must they have been overstretching?
Interro-negative form
Simple form
must I not overstretch? must you not overstretch? must he not overstretch? must we not overstretch? must you not overstretch? must they not overstretch?
V-ing form
must I not be overstretching? must you not be overstretching? must he not be overstretching? must we not be overstretching? must you not be overstretching? must they not be overstretching?
Perfect
must I not have overstretched? must you not have overstretched? must he not have overstretched? must we not have overstretched? must you not have overstretched? must they not have overstretched?
V-ing perfect
must I not have been overstretching? must you not have been overstretching? must he not have been overstretching? must we not have been overstretching? must you not have been overstretching? must they not have been overstretching?