English verb conjugation MUST CLASS

Regular verb: class - classed - classed

Affirmation

Simple form

I must class
you must class
he must class
we must class
you must class
they must class

V-ing form

I must be classing
you must be classing
he must be classing
we must be classing
you must be classing
they must be classing

Perfect

I must have classed
you must have classed
he must have classed
we must have classed
you must have classed
they must have classed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I class?
must you class?
must he class?
must we class?
must you class?
must they class?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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