English verb conjugation MUST SINGE

Regular verb: singe - singed - singed

Affirmation

Simple form

I must singe
you must singe
he must singe
we must singe
you must singe
they must singe

V-ing form

I must be singing
you must be singing
he must be singing
we must be singing
you must be singing
they must be singing

Perfect

I must have singed
you must have singed
he must have singed
we must have singed
you must have singed
they must have singed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I singe?
must you singe?
must he singe?
must we singe?
must you singe?
must they singe?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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