English verb conjugation MUST FRIBBLE

Regular verb: fribble - fribbled - fribbled

Affirmation

Simple form

I must fribble
you must fribble
she must fribble
we must fribble
you must fribble
they must fribble

V-ing form

I must be fribbling
you must be fribbling
she must be fribbling
we must be fribbling
you must be fribbling
they must be fribbling

Perfect

I must have fribbled
you must have fribbled
she must have fribbled
we must have fribbled
you must have fribbled
they must have fribbled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I fribble?
must you fribble?
must she fribble?
must we fribble?
must you fribble?
must they fribble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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