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

English verb conjugation MUST SUBSTITUTE

Regular verb: substitute - substituted - substituted


Affirmation

Simple form
I must substitute
you must substitute
he must substitute
we must substitute
you must substitute
they must substitute
V-ing form
I must be substituting
you must be substituting
he must be substituting
we must be substituting
you must be substituting
they must be substituting
Perfect
I must have substituted
you must have substituted
he must have substituted
we must have substituted
you must have substituted
they must have substituted
V-ing perfect
I must have been substituting
you must have been substituting
he must have been substituting
we must have been substituting
you must have been substituting
they must have been substituting

Negation

Simple form
I must not substitute
you must not substitute
he must not substitute
we must not substitute
you must not substitute
they must not substitute
V-ing form
I must not be substituting
you must not be substituting
he must not be substituting
we must not be substituting
you must not be substituting
they must not be substituting
Perfect
I must not have substituted
you must not have substituted
he must not have substituted
we must not have substituted
you must not have substituted
they must not have substituted
V-ing perfect
I must not have been substituting
you must not have been substituting
he must not have been substituting
we must not have been substituting
you must not have been substituting
they must not have been substituting

Interrogative form

Simple form
must I substitute?
must you substitute?
must he substitute?
must we substitute?
must you substitute?
must they substitute?
V-ing form
must I be substituting?
must you be substituting?
must he be substituting?
must we be substituting?
must you be substituting?
must they be substituting?
Perfect
must I have substituted?
must you have substituted?
must he have substituted?
must we have substituted?
must you have substituted?
must they have substituted?
V-ing perfect
must I have been substituting?
must you have been substituting?
must he have been substituting?
must we have been substituting?
must you have been substituting?
must they have been substituting?

Interro-negative form

Simple form
must I not substitute?
must you not substitute?
must he not substitute?
must we not substitute?
must you not substitute?
must they not substitute?
V-ing form
must I not be substituting?
must you not be substituting?
must he not be substituting?
must we not be substituting?
must you not be substituting?
must they not be substituting?
Perfect
must I not have substituted?
must you not have substituted?
must he not have substituted?
must we not have substituted?
must you not have substituted?
must they not have substituted?
V-ing perfect
must I not have been substituting?
must you not have been substituting?
must he not have been substituting?
must we not have been substituting?
must you not have been substituting?
must they not have been substituting?