English verb conjugation
CAN PUN

Regular verb: pun - punned - punned

Affirmation

Simple form	V-ing form
I can pun you can pun she can pun we can pun you can pun they can pun	I can be punning you can be punning she can be punning we can be punning you can be punning they can be punning
Perfect	V-ing perfect
I can have punned you can have punned she can have punned we can have punned you can have punned they can have punned	I can have been punning you can have been punning she can have been punning we can have been punning you can have been punning they can have been punning

Negation

Simple form	V-ing form
I can't pun you can't pun she can't pun we can't pun you can't pun they can't pun	I can't be punning you can't be punning she can't be punning we can't be punning you can't be punning they can't be punning
Perfect	V-ing perfect
I can't have punned you can't have punned she can't have punned we can't have punned you can't have punned they can't have punned	I can't have been punning you can't have been punning she can't have been punning we can't have been punning you can't have been punning they can't have been punning

Interrogative form

Simple form	V-ing form
can I pun? can you pun? can she pun? can we pun? can you pun? can they pun?	can I be punning? can you be punning? can she be punning? can we be punning? can you be punning? can they be punning?
Perfect	V-ing perfect
can I have punned? can you have punned? can she have punned? can we have punned? can you have punned? can they have punned?	can I have been punning? can you have been punning? can she have been punning? can we have been punning? can you have been punning? can they have been punning?

Interro-negative form

Simple form	V-ing form
can't I pun? can't you pun? can't she pun? can't we pun? can't you pun? can't they pun?	can't I be punning? can't you be punning? can't she be punning? can't we be punning? can't you be punning? can't they be punning?
Perfect	V-ing perfect
can't I have punned? can't you have punned? can't she have punned? can't we have punned? can't you have punned? can't they have punned?	can't I have been punning? can't you have been punning? can't she have been punning? can't we have been punning? can't you have been punning? can't they have been punning?