English verb conjugation MUST DISCOVER

Regular verb: discover - discovered - discovered

Affirmation

Simple form

I must discover
you must discover
he must discover
we must discover
you must discover
they must discover

V-ing form

I must be discovering
you must be discovering
he must be discovering
we must be discovering
you must be discovering
they must be discovering

Perfect

I must have discovered
you must have discovered
he must have discovered
we must have discovered
you must have discovered
they must have discovered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I discover?
must you discover?
must he discover?
must we discover?
must you discover?
must they discover?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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