English verb conjugation
CAN LESSON

Regular verb: lesson - lessoned - lessoned

Affirmation

Simple form	V-ing form
I can lesson you can lesson she can lesson we can lesson you can lesson they can lesson	I can be lessoning you can be lessoning she can be lessoning we can be lessoning you can be lessoning they can be lessoning
Perfect	V-ing perfect
I can have lessoned you can have lessoned she can have lessoned we can have lessoned you can have lessoned they can have lessoned	I can have been lessoning you can have been lessoning she can have been lessoning we can have been lessoning you can have been lessoning they can have been lessoning

Negation

Simple form	V-ing form
I can't lesson you can't lesson she can't lesson we can't lesson you can't lesson they can't lesson	I can't be lessoning you can't be lessoning she can't be lessoning we can't be lessoning you can't be lessoning they can't be lessoning
Perfect	V-ing perfect
I can't have lessoned you can't have lessoned she can't have lessoned we can't have lessoned you can't have lessoned they can't have lessoned	I can't have been lessoning you can't have been lessoning she can't have been lessoning we can't have been lessoning you can't have been lessoning they can't have been lessoning

Interrogative form

Simple form	V-ing form
can I lesson? can you lesson? can she lesson? can we lesson? can you lesson? can they lesson?	can I be lessoning? can you be lessoning? can she be lessoning? can we be lessoning? can you be lessoning? can they be lessoning?
Perfect	V-ing perfect
can I have lessoned? can you have lessoned? can she have lessoned? can we have lessoned? can you have lessoned? can they have lessoned?	can I have been lessoning? can you have been lessoning? can she have been lessoning? can we have been lessoning? can you have been lessoning? can they have been lessoning?

Interro-negative form

Simple form	V-ing form
can't I lesson? can't you lesson? can't she lesson? can't we lesson? can't you lesson? can't they lesson?	can't I be lessoning? can't you be lessoning? can't she be lessoning? can't we be lessoning? can't you be lessoning? can't they be lessoning?
Perfect	V-ing perfect
can't I have lessoned? can't you have lessoned? can't she have lessoned? can't we have lessoned? can't you have lessoned? can't they have lessoned?	can't I have been lessoning? can't you have been lessoning? can't she have been lessoning? can't we have been lessoning? can't you have been lessoning? can't they have been lessoning?