English verb conjugation MUST COG

Regular verb: cog - coged - coged

Affirmation

Simple form

I must cog
you must cog
he must cog
we must cog
you must cog
they must cog

V-ing form

I must be coging
you must be coging
he must be coging
we must be coging
you must be coging
they must be coging

Perfect

I must have coged
you must have coged
he must have coged
we must have coged
you must have coged
they must have coged

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I cog?
must you cog?
must he cog?
must we cog?
must you cog?
must they cog?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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