English verb conjugation CAN UNDERPERFORM

Regular verb: underperform - underperformed - underperformed

Affirmation

Simple form

I can underperform
you can underperform
she can underperform
we can underperform
you can underperform
they can underperform

V-ing form

I can be underperforming
you can be underperforming
she can be underperforming
we can be underperforming
you can be underperforming
they can be underperforming

Perfect

I can have underperformed
you can have underperformed
she can have underperformed
we can have underperformed
you can have underperformed
they can have underperformed

V-ing perfect

I can have been underperforming
you can have been underperforming
she can have been underperforming
we can have been underperforming
you can have been underperforming
they can have been underperforming

Negation

Simple form

I can't underperform
you can't underperform
she can't underperform
we can't underperform
you can't underperform
they can't underperform

V-ing form

I can't be underperforming
you can't be underperforming
she can't be underperforming
we can't be underperforming
you can't be underperforming
they can't be underperforming

Perfect

I can't have underperformed
you can't have underperformed
she can't have underperformed
we can't have underperformed
you can't have underperformed
they can't have underperformed

V-ing perfect

I can't have been underperforming
you can't have been underperforming
she can't have been underperforming
we can't have been underperforming
you can't have been underperforming
they can't have been underperforming

Interrogative form

Simple form

can I underperform?
can you underperform?
can she underperform?
can we underperform?
can you underperform?
can they underperform?

V-ing form

can I be underperforming?
can you be underperforming?
can she be underperforming?
can we be underperforming?
can you be underperforming?
can they be underperforming?

Perfect

can I have underperformed?
can you have underperformed?
can she have underperformed?
can we have underperformed?
can you have underperformed?
can they have underperformed?

V-ing perfect

can I have been underperforming?
can you have been underperforming?
can she have been underperforming?
can we have been underperforming?
can you have been underperforming?
can they have been underperforming?

Interro-negative form

Simple form

can't I underperform?
can't you underperform?
can't she underperform?
can't we underperform?
can't you underperform?
can't they underperform?

V-ing form

can't I be underperforming?
can't you be underperforming?
can't she be underperforming?
can't we be underperforming?
can't you be underperforming?
can't they be underperforming?

Perfect

can't I have underperformed?
can't you have underperformed?
can't she have underperformed?
can't we have underperformed?
can't you have underperformed?
can't they have underperformed?

V-ing perfect

can't I have been underperforming?
can't you have been underperforming?
can't she have been underperforming?
can't we have been underperforming?
can't you have been underperforming?
can't they have been underperforming?

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