female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST FLUNK
Regular verb: flunk - flunked - flunked
Affirmation
Simple form
I must flunkyou must flunk
he must flunk
we must flunk
you must flunk
they must flunk
V-ing form
I must be flunkingyou must be flunking
he must be flunking
we must be flunking
you must be flunking
they must be flunking
Perfect
I must have flunkedyou must have flunked
he must have flunked
we must have flunked
you must have flunked
they must have flunked
V-ing perfect
I must have been flunkingyou must have been flunking
he must have been flunking
we must have been flunking
you must have been flunking
they must have been flunking
Negation
Simple form
I mustn't flunkyou mustn't flunk
he mustn't flunk
we mustn't flunk
you mustn't flunk
they mustn't flunk
V-ing form
I mustn't be flunkingyou mustn't be flunking
he mustn't be flunking
we mustn't be flunking
you mustn't be flunking
they mustn't be flunking
Perfect
I mustn't have flunkedyou mustn't have flunked
he mustn't have flunked
we mustn't have flunked
you mustn't have flunked
they mustn't have flunked
V-ing perfect
I mustn't have been flunkingyou mustn't have been flunking
he mustn't have been flunking
we mustn't have been flunking
you mustn't have been flunking
they mustn't have been flunking
Interrogative form
Simple form
must I flunk?must you flunk?
must he flunk?
must we flunk?
must you flunk?
must they flunk?
V-ing form
must I be flunking?must you be flunking?
must he be flunking?
must we be flunking?
must you be flunking?
must they be flunking?
Perfect
must I have flunked?must you have flunked?
must he have flunked?
must we have flunked?
must you have flunked?
must they have flunked?
V-ing perfect
must I have been flunking?must you have been flunking?
must he have been flunking?
must we have been flunking?
must you have been flunking?
must they have been flunking?
Interro-negative form
Simple form
mustn't I flunk?mustn't you flunk?
mustn't he flunk?
mustn't we flunk?
mustn't you flunk?
mustn't they flunk?
V-ing form
mustn't I be flunking?mustn't you be flunking?
mustn't he be flunking?
mustn't we be flunking?
mustn't you be flunking?
mustn't they be flunking?
Perfect
mustn't I have flunked?mustn't you have flunked?
mustn't he have flunked?
mustn't we have flunked?
mustn't you have flunked?
mustn't they have flunked?
V-ing perfect
mustn't I have been flunking?mustn't you have been flunking?
mustn't he have been flunking?
mustn't we have been flunking?
mustn't you have been flunking?
mustn't they have been flunking?