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female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation MUST PRESERVE

Regular verb: preserve - preserved - preserved


Affirmation

Simple form
I must preserve
you must preserve
he must preserve
we must preserve
you must preserve
they must preserve
V-ing form
I must be preserving
you must be preserving
he must be preserving
we must be preserving
you must be preserving
they must be preserving
Perfect
I must have preserved
you must have preserved
he must have preserved
we must have preserved
you must have preserved
they must have preserved
V-ing perfect
I must have been preserving
you must have been preserving
he must have been preserving
we must have been preserving
you must have been preserving
they must have been preserving

Negation

Simple form
I must not preserve
you must not preserve
he must not preserve
we must not preserve
you must not preserve
they must not preserve
V-ing form
I must not be preserving
you must not be preserving
he must not be preserving
we must not be preserving
you must not be preserving
they must not be preserving
Perfect
I must not have preserved
you must not have preserved
he must not have preserved
we must not have preserved
you must not have preserved
they must not have preserved
V-ing perfect
I must not have been preserving
you must not have been preserving
he must not have been preserving
we must not have been preserving
you must not have been preserving
they must not have been preserving

Interrogative form

Simple form
must I preserve?
must you preserve?
must he preserve?
must we preserve?
must you preserve?
must they preserve?
V-ing form
must I be preserving?
must you be preserving?
must he be preserving?
must we be preserving?
must you be preserving?
must they be preserving?
Perfect
must I have preserved?
must you have preserved?
must he have preserved?
must we have preserved?
must you have preserved?
must they have preserved?
V-ing perfect
must I have been preserving?
must you have been preserving?
must he have been preserving?
must we have been preserving?
must you have been preserving?
must they have been preserving?

Interro-negative form

Simple form
must I not preserve?
must you not preserve?
must he not preserve?
must we not preserve?
must you not preserve?
must they not preserve?
V-ing form
must I not be preserving?
must you not be preserving?
must he not be preserving?
must we not be preserving?
must you not be preserving?
must they not be preserving?
Perfect
must I not have preserved?
must you not have preserved?
must he not have preserved?
must we not have preserved?
must you not have preserved?
must they not have preserved?
V-ing perfect
must I not have been preserving?
must you not have been preserving?
must he not have been preserving?
must we not have been preserving?
must you not have been preserving?
must they not have been preserving?