English verb conjugation MUST GLASS

Regular verb: glass - glassed - glassed

Affirmation

Simple form

I must glass
you must glass
he must glass
we must glass
you must glass
they must glass

V-ing form

I must be glassing
you must be glassing
he must be glassing
we must be glassing
you must be glassing
they must be glassing

Perfect

I must have glassed
you must have glassed
he must have glassed
we must have glassed
you must have glassed
they must have glassed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I glass?
must you glass?
must he glass?
must we glass?
must you glass?
must they glass?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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