English verb conjugation CAN OPEN

Regular verb: open - opened - opened

Affirmation

Simple form

I can open
you can open
he can open
we can open
you can open
they can open

V-ing form

I can be opening
you can be opening
he can be opening
we can be opening
you can be opening
they can be opening

Perfect

I can have opened
you can have opened
he can have opened
we can have opened
you can have opened
they can have opened

V-ing perfect

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

Negation

Simple form

I cannot open
you cannot open
he cannot open
we cannot open
you cannot open
they cannot open

V-ing form

I cannot be opening
you cannot be opening
he cannot be opening
we cannot be opening
you cannot be opening
they cannot be opening

Perfect

I cannot have opened
you cannot have opened
he cannot have opened
we cannot have opened
you cannot have opened
they cannot have opened

V-ing perfect

I cannot have been opening
you cannot have been opening
he cannot have been opening
we cannot have been opening
you cannot have been opening
they cannot have been opening

Interrogative form

Simple form

can I open?
can you open?
can he open?
can we open?
can you open?
can they open?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

can I not open?
can you not open?
can he not open?
can we not open?
can you not open?
can they not open?

V-ing form

can I not be opening?
can you not be opening?
can he not be opening?
can we not be opening?
can you not be opening?
can they not be opening?

Perfect

can I not have opened?
can you not have opened?
can he not have opened?
can we not have opened?
can you not have opened?
can they not have opened?

V-ing perfect

can I not have been opening?
can you not have been opening?
can he not have been opening?
can we not have been opening?
can you not have been opening?
can they not have been opening?

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