English verb conjugation MUST PREOCCUPY

Regular verb: preoccupy - preoccupied - preoccupied

Affirmation

Simple form

I must preoccupy
you must preoccupy
he must preoccupy
we must preoccupy
you must preoccupy
they must preoccupy

V-ing form

I must be preoccupying
you must be preoccupying
he must be preoccupying
we must be preoccupying
you must be preoccupying
they must be preoccupying

Perfect

I must have preoccupied
you must have preoccupied
he must have preoccupied
we must have preoccupied
you must have preoccupied
they must have preoccupied

V-ing perfect

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

Negation

Simple form

I must not preoccupy
you must not preoccupy
he must not preoccupy
we must not preoccupy
you must not preoccupy
they must not preoccupy

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I preoccupy?
must you preoccupy?
must he preoccupy?
must we preoccupy?
must you preoccupy?
must they preoccupy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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