English verb conjugation MUST FOUND

Regular verb: found - founded - founded

Affirmation

Simple form

I must found
you must found
she must found
we must found
you must found
they must found

V-ing form

I must be founding
you must be founding
she must be founding
we must be founding
you must be founding
they must be founding

Perfect

I must have founded
you must have founded
she must have founded
we must have founded
you must have founded
they must have founded

V-ing perfect

I must have been founding
you must have been founding
she must have been founding
we must have been founding
you must have been founding
they must have been founding

Negation

Simple form

I mustn't found
you mustn't found
she mustn't found
we mustn't found
you mustn't found
they mustn't found

V-ing form

I mustn't be founding
you mustn't be founding
she mustn't be founding
we mustn't be founding
you mustn't be founding
they mustn't be founding

Perfect

I mustn't have founded
you mustn't have founded
she mustn't have founded
we mustn't have founded
you mustn't have founded
they mustn't have founded

V-ing perfect

I mustn't have been founding
you mustn't have been founding
she mustn't have been founding
we mustn't have been founding
you mustn't have been founding
they mustn't have been founding

Interrogative form

Simple form

must I found?
must you found?
must she found?
must we found?
must you found?
must they found?

V-ing form

must I be founding?
must you be founding?
must she be founding?
must we be founding?
must you be founding?
must they be founding?

Perfect

must I have founded?
must you have founded?
must she have founded?
must we have founded?
must you have founded?
must they have founded?

V-ing perfect

must I have been founding?
must you have been founding?
must she have been founding?
must we have been founding?
must you have been founding?
must they have been founding?

Interro-negative form

Simple form

mustn't I found?
mustn't you found?
mustn't she found?
mustn't we found?
mustn't you found?
mustn't they found?

V-ing form

mustn't I be founding?
mustn't you be founding?
mustn't she be founding?
mustn't we be founding?
mustn't you be founding?
mustn't they be founding?

Perfect

mustn't I have founded?
mustn't you have founded?
mustn't she have founded?
mustn't we have founded?
mustn't you have founded?
mustn't they have founded?

V-ing perfect

mustn't I have been founding?
mustn't you have been founding?
mustn't she have been founding?
mustn't we have been founding?
mustn't you have been founding?
mustn't they have been founding?

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