English verb conjugation MUST SMILE

Regular verb: smile - smiled - smiled

Affirmation

Simple form

I must smile
you must smile
he must smile
we must smile
you must smile
they must smile

V-ing form

I must be smiling
you must be smiling
he must be smiling
we must be smiling
you must be smiling
they must be smiling

Perfect

I must have smiled
you must have smiled
he must have smiled
we must have smiled
you must have smiled
they must have smiled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I smile?
must you smile?
must he smile?
must we smile?
must you smile?
must they smile?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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