English verb conjugation
CAN OUTPUT

Irregular verb: output - output - output

Affirmation

Simple form	V-ing form
I can output you can output he can output we can output you can output they can output	I can be outputing you can be outputing he can be outputing we can be outputing you can be outputing they can be outputing
Perfect	V-ing perfect
I can have output you can have output he can have output we can have output you can have output they can have output	I can have been outputing you can have been outputing he can have been outputing we can have been outputing you can have been outputing they can have been outputing

Negation

Simple form	V-ing form
I cannot output you cannot output he cannot output we cannot output you cannot output they cannot output	I cannot be outputing you cannot be outputing he cannot be outputing we cannot be outputing you cannot be outputing they cannot be outputing
Perfect	V-ing perfect
I cannot have output you cannot have output he cannot have output we cannot have output you cannot have output they cannot have output	I cannot have been outputing you cannot have been outputing he cannot have been outputing we cannot have been outputing you cannot have been outputing they cannot have been outputing

Interrogative form

Simple form	V-ing form
can I output? can you output? can he output? can we output? can you output? can they output?	can I be outputing? can you be outputing? can he be outputing? can we be outputing? can you be outputing? can they be outputing?
Perfect	V-ing perfect
can I have output? can you have output? can he have output? can we have output? can you have output? can they have output?	can I have been outputing? can you have been outputing? can he have been outputing? can we have been outputing? can you have been outputing? can they have been outputing?

Interro-negative form

Simple form	V-ing form
can I not output? can you not output? can he not output? can we not output? can you not output? can they not output?	can I not be outputing? can you not be outputing? can he not be outputing? can we not be outputing? can you not be outputing? can they not be outputing?
Perfect	V-ing perfect
can I not have output? can you not have output? can he not have output? can we not have output? can you not have output? can they not have output?	can I not have been outputing? can you not have been outputing? can he not have been outputing? can we not have been outputing? can you not have been outputing? can they not have been outputing?