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 must not still
you must not still
he must not still
we must not still
you must not still
they must not still

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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