English verb conjugation MUST UNDERACHIEVE

Regular verb: underachieve - underachieved - underachieved

Affirmation

Simple form

I must underachieve
you must underachieve
he must underachieve
we must underachieve
you must underachieve
they must underachieve

V-ing form

I must be underachieving
you must be underachieving
he must be underachieving
we must be underachieving
you must be underachieving
they must be underachieving

Perfect

I must have underachieved
you must have underachieved
he must have underachieved
we must have underachieved
you must have underachieved
they must have underachieved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underachieve?
must you underachieve?
must he underachieve?
must we underachieve?
must you underachieve?
must they underachieve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Page top