English verb conjugation
CAN HARP

Regular verb: harp - harped - harped

Affirmation

Simple form	V-ing form
I can harp you can harp she can harp we can harp you can harp they can harp	I can be harping you can be harping she can be harping we can be harping you can be harping they can be harping
Perfect	V-ing perfect
I can have harped you can have harped she can have harped we can have harped you can have harped they can have harped	I can have been harping you can have been harping she can have been harping we can have been harping you can have been harping they can have been harping

Negation

Simple form	V-ing form
I cannot harp you cannot harp she cannot harp we cannot harp you cannot harp they cannot harp	I cannot be harping you cannot be harping she cannot be harping we cannot be harping you cannot be harping they cannot be harping
Perfect	V-ing perfect
I cannot have harped you cannot have harped she cannot have harped we cannot have harped you cannot have harped they cannot have harped	I cannot have been harping you cannot have been harping she cannot have been harping we cannot have been harping you cannot have been harping they cannot have been harping

Interrogative form

Simple form	V-ing form
can I harp? can you harp? can she harp? can we harp? can you harp? can they harp?	can I be harping? can you be harping? can she be harping? can we be harping? can you be harping? can they be harping?
Perfect	V-ing perfect
can I have harped? can you have harped? can she have harped? can we have harped? can you have harped? can they have harped?	can I have been harping? can you have been harping? can she have been harping? can we have been harping? can you have been harping? can they have been harping?

Interro-negative form

Simple form	V-ing form
can I not harp? can you not harp? can she not harp? can we not harp? can you not harp? can they not harp?	can I not be harping? can you not be harping? can she not be harping? can we not be harping? can you not be harping? can they not be harping?
Perfect	V-ing perfect
can I not have harped? can you not have harped? can she not have harped? can we not have harped? can you not have harped? can they not have harped?	can I not have been harping? can you not have been harping? can she not have been harping? can we not have been harping? can you not have been harping? can they not have been harping?