English verb conjugation CAN UNDERSTUDY

Regular verb: understudy - understudied - understudied

Affirmation

Simple form

I can understudy
you can understudy
he can understudy
we can understudy
you can understudy
they can understudy

V-ing form

I can be understudying
you can be understudying
he can be understudying
we can be understudying
you can be understudying
they can be understudying

Perfect

I can have understudied
you can have understudied
he can have understudied
we can have understudied
you can have understudied
they can have understudied

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I understudy?
can you understudy?
can he understudy?
can we understudy?
can you understudy?
can they understudy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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