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 mustn't think
you mustn't think
he mustn't think
we mustn't think
you mustn't think
they mustn't think

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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