English verb conjugation MUST SIPHON

Regular verb: siphon - siphoned - siphoned

Affirmation

Simple form

I must siphon
you must siphon
she must siphon
we must siphon
you must siphon
they must siphon

V-ing form

I must be siphoning
you must be siphoning
she must be siphoning
we must be siphoning
you must be siphoning
they must be siphoning

Perfect

I must have siphoned
you must have siphoned
she must have siphoned
we must have siphoned
you must have siphoned
they must have siphoned

V-ing perfect

I must have been siphoning
you must have been siphoning
she must have been siphoning
we must have been siphoning
you must have been siphoning
they must have been siphoning

Negation

Simple form

I mustn't siphon
you mustn't siphon
she mustn't siphon
we mustn't siphon
you mustn't siphon
they mustn't siphon

V-ing form

I mustn't be siphoning
you mustn't be siphoning
she mustn't be siphoning
we mustn't be siphoning
you mustn't be siphoning
they mustn't be siphoning

Perfect

I mustn't have siphoned
you mustn't have siphoned
she mustn't have siphoned
we mustn't have siphoned
you mustn't have siphoned
they mustn't have siphoned

V-ing perfect

I mustn't have been siphoning
you mustn't have been siphoning
she mustn't have been siphoning
we mustn't have been siphoning
you mustn't have been siphoning
they mustn't have been siphoning

Interrogative form

Simple form

must I siphon?
must you siphon?
must she siphon?
must we siphon?
must you siphon?
must they siphon?

V-ing form

must I be siphoning?
must you be siphoning?
must she be siphoning?
must we be siphoning?
must you be siphoning?
must they be siphoning?

Perfect

must I have siphoned?
must you have siphoned?
must she have siphoned?
must we have siphoned?
must you have siphoned?
must they have siphoned?

V-ing perfect

must I have been siphoning?
must you have been siphoning?
must she have been siphoning?
must we have been siphoning?
must you have been siphoning?
must they have been siphoning?

Interro-negative form

Simple form

mustn't I siphon?
mustn't you siphon?
mustn't she siphon?
mustn't we siphon?
mustn't you siphon?
mustn't they siphon?

V-ing form

mustn't I be siphoning?
mustn't you be siphoning?
mustn't she be siphoning?
mustn't we be siphoning?
mustn't you be siphoning?
mustn't they be siphoning?

Perfect

mustn't I have siphoned?
mustn't you have siphoned?
mustn't she have siphoned?
mustn't we have siphoned?
mustn't you have siphoned?
mustn't they have siphoned?

V-ing perfect

mustn't I have been siphoning?
mustn't you have been siphoning?
mustn't she have been siphoning?
mustn't we have been siphoning?
mustn't you have been siphoning?
mustn't they have been siphoning?

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