English verb conjugation MUST VENTILATE

Regular verb: ventilate - ventilated - ventilated

Affirmation

Simple form

I must ventilate
you must ventilate
he must ventilate
we must ventilate
you must ventilate
they must ventilate

V-ing form

I must be ventilating
you must be ventilating
he must be ventilating
we must be ventilating
you must be ventilating
they must be ventilating

Perfect

I must have ventilated
you must have ventilated
he must have ventilated
we must have ventilated
you must have ventilated
they must have ventilated

V-ing perfect

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

Negation

Simple form

I must not ventilate
you must not ventilate
he must not ventilate
we must not ventilate
you must not ventilate
they must not ventilate

V-ing form

I must not be ventilating
you must not be ventilating
he must not be ventilating
we must not be ventilating
you must not be ventilating
they must not be ventilating

Perfect

I must not have ventilated
you must not have ventilated
he must not have ventilated
we must not have ventilated
you must not have ventilated
they must not have ventilated

V-ing perfect

I must not have been ventilating
you must not have been ventilating
he must not have been ventilating
we must not have been ventilating
you must not have been ventilating
they must not have been ventilating

Interrogative form

Simple form

must I ventilate?
must you ventilate?
must he ventilate?
must we ventilate?
must you ventilate?
must they ventilate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not ventilate?
must you not ventilate?
must he not ventilate?
must we not ventilate?
must you not ventilate?
must they not ventilate?

V-ing form

must I not be ventilating?
must you not be ventilating?
must he not be ventilating?
must we not be ventilating?
must you not be ventilating?
must they not be ventilating?

Perfect

must I not have ventilated?
must you not have ventilated?
must he not have ventilated?
must we not have ventilated?
must you not have ventilated?
must they not have ventilated?

V-ing perfect

must I not have been ventilating?
must you not have been ventilating?
must he not have been ventilating?
must we not have been ventilating?
must you not have been ventilating?
must they not have been ventilating?

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