English verb conjugation MUST EXPLAIN

Regular verb: explain - explained - explained

Affirmation

Simple form

I must explain
you must explain
he must explain
we must explain
you must explain
they must explain

V-ing form

I must be explaining
you must be explaining
he must be explaining
we must be explaining
you must be explaining
they must be explaining

Perfect

I must have explained
you must have explained
he must have explained
we must have explained
you must have explained
they must have explained

V-ing perfect

I must have been explaining
you must have been explaining
he must have been explaining
we must have been explaining
you must have been explaining
they must have been explaining

Negation

Simple form

I mustn't explain
you mustn't explain
he mustn't explain
we mustn't explain
you mustn't explain
they mustn't explain

V-ing form

I mustn't be explaining
you mustn't be explaining
he mustn't be explaining
we mustn't be explaining
you mustn't be explaining
they mustn't be explaining

Perfect

I mustn't have explained
you mustn't have explained
he mustn't have explained
we mustn't have explained
you mustn't have explained
they mustn't have explained

V-ing perfect

I mustn't have been explaining
you mustn't have been explaining
he mustn't have been explaining
we mustn't have been explaining
you mustn't have been explaining
they mustn't have been explaining

Interrogative form

Simple form

must I explain?
must you explain?
must he explain?
must we explain?
must you explain?
must they explain?

V-ing form

must I be explaining?
must you be explaining?
must he be explaining?
must we be explaining?
must you be explaining?
must they be explaining?

Perfect

must I have explained?
must you have explained?
must he have explained?
must we have explained?
must you have explained?
must they have explained?

V-ing perfect

must I have been explaining?
must you have been explaining?
must he have been explaining?
must we have been explaining?
must you have been explaining?
must they have been explaining?

Interro-negative form

Simple form

mustn't I explain?
mustn't you explain?
mustn't he explain?
mustn't we explain?
mustn't you explain?
mustn't they explain?

V-ing form

mustn't I be explaining?
mustn't you be explaining?
mustn't he be explaining?
mustn't we be explaining?
mustn't you be explaining?
mustn't they be explaining?

Perfect

mustn't I have explained?
mustn't you have explained?
mustn't he have explained?
mustn't we have explained?
mustn't you have explained?
mustn't they have explained?

V-ing perfect

mustn't I have been explaining?
mustn't you have been explaining?
mustn't he have been explaining?
mustn't we have been explaining?
mustn't you have been explaining?
mustn't they have been explaining?

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