English verb conjugation
CAN PAIR

Regular verb: pair - paired - paired

Affirmation

Simple form	V-ing form
I can pair you can pair she can pair we can pair you can pair they can pair	I can be pairing you can be pairing she can be pairing we can be pairing you can be pairing they can be pairing
Perfect	V-ing perfect
I can have paired you can have paired she can have paired we can have paired you can have paired they can have paired	I can have been pairing you can have been pairing she can have been pairing we can have been pairing you can have been pairing they can have been pairing

Negation

Simple form	V-ing form
I cannot pair you cannot pair she cannot pair we cannot pair you cannot pair they cannot pair	I cannot be pairing you cannot be pairing she cannot be pairing we cannot be pairing you cannot be pairing they cannot be pairing
Perfect	V-ing perfect
I cannot have paired you cannot have paired she cannot have paired we cannot have paired you cannot have paired they cannot have paired	I cannot have been pairing you cannot have been pairing she cannot have been pairing we cannot have been pairing you cannot have been pairing they cannot have been pairing

Interrogative form

Simple form	V-ing form
can I pair? can you pair? can she pair? can we pair? can you pair? can they pair?	can I be pairing? can you be pairing? can she be pairing? can we be pairing? can you be pairing? can they be pairing?
Perfect	V-ing perfect
can I have paired? can you have paired? can she have paired? can we have paired? can you have paired? can they have paired?	can I have been pairing? can you have been pairing? can she have been pairing? can we have been pairing? can you have been pairing? can they have been pairing?

Interro-negative form

Simple form	V-ing form
can I not pair? can you not pair? can she not pair? can we not pair? can you not pair? can they not pair?	can I not be pairing? can you not be pairing? can she not be pairing? can we not be pairing? can you not be pairing? can they not be pairing?
Perfect	V-ing perfect
can I not have paired? can you not have paired? can she not have paired? can we not have paired? can you not have paired? can they not have paired?	can I not have been pairing? can you not have been pairing? can she not have been pairing? can we not have been pairing? can you not have been pairing? can they not have been pairing?