English verb conjugation MUST STILL

Regular verb: still - stilled - stilled

Affirmation

Simple form

I must still
you must still
he must still
we must still
you must still
they must still

V-ing form

I must be stilling
you must be stilling
he must be stilling
we must be stilling
you must be stilling
they must be stilling

Perfect

I must have stilled
you must have stilled
he must have stilled
we must have stilled
you must have stilled
they must have stilled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I still?
must you still?
must he still?
must we still?
must you still?
must they still?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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