English verb conjugation MUST THINK

Irregular verb: think - thought - thought


Affirmation

Simple form

I must think
you must think
he must think
we must think
you must think
they must think

V-ing form

I must be thinking
you must be thinking
he must be thinking
we must be thinking
you must be thinking
they must be thinking

Perfect

I must have thought
you must have thought
he must have thought
we must have thought
you must have thought
they must have thought

V-ing perfect

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

Negation

Simple form

I must not think
you must not think
he must not think
we must not think
you must not think
they must not think

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I think?
must you think?
must he think?
must we think?
must you think?
must they think?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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