English verb conjugation MUST SLIPPER

Regular verb: slipper - slippered - slippered

Affirmation

Simple form

I must slipper
you must slipper
she must slipper
we must slipper
you must slipper
they must slipper

V-ing form

I must be slippering
you must be slippering
she must be slippering
we must be slippering
you must be slippering
they must be slippering

Perfect

I must have slippered
you must have slippered
she must have slippered
we must have slippered
you must have slippered
they must have slippered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I slipper?
must you slipper?
must she slipper?
must we slipper?
must you slipper?
must they slipper?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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