English verb conjugation CAN ROUGHEN

Regular verb: roughen - roughened - roughened

Affirmation

Simple form

I can roughen
you can roughen
he can roughen
we can roughen
you can roughen
they can roughen

V-ing form

I can be roughening
you can be roughening
he can be roughening
we can be roughening
you can be roughening
they can be roughening

Perfect

I can have roughened
you can have roughened
he can have roughened
we can have roughened
you can have roughened
they can have roughened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

can I roughen?
can you roughen?
can he roughen?
can we roughen?
can you roughen?
can they roughen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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