English verb conjugation MUST FOIL

Regular verb: foil - foiled - foiled

Affirmation

Simple form

I must foil
you must foil
he must foil
we must foil
you must foil
they must foil

V-ing form

I must be foiling
you must be foiling
he must be foiling
we must be foiling
you must be foiling
they must be foiling

Perfect

I must have foiled
you must have foiled
he must have foiled
we must have foiled
you must have foiled
they must have foiled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I foil?
must you foil?
must he foil?
must we foil?
must you foil?
must they foil?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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