English verb conjugation CAN UNDERACHIEVE

Regular verb: underachieve - underachieved - underachieved

Affirmation

Simple form

I can underachieve
you can underachieve
he can underachieve
we can underachieve
you can underachieve
they can underachieve

V-ing form

I can be underachieving
you can be underachieving
he can be underachieving
we can be underachieving
you can be underachieving
they can be underachieving

Perfect

I can have underachieved
you can have underachieved
he can have underachieved
we can have underachieved
you can have underachieved
they can have underachieved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I underachieve?
can you underachieve?
can he underachieve?
can we underachieve?
can you underachieve?
can they underachieve?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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