English verb conjugation
CAN PONG

Regular verb: pong - ponged - ponged

Affirmation

Simple form	V-ing form
I can pong you can pong she can pong we can pong you can pong they can pong	I can be ponging you can be ponging she can be ponging we can be ponging you can be ponging they can be ponging
Perfect	V-ing perfect
I can have ponged you can have ponged she can have ponged we can have ponged you can have ponged they can have ponged	I can have been ponging you can have been ponging she can have been ponging we can have been ponging you can have been ponging they can have been ponging

Negation

Simple form	V-ing form
I can't pong you can't pong she can't pong we can't pong you can't pong they can't pong	I can't be ponging you can't be ponging she can't be ponging we can't be ponging you can't be ponging they can't be ponging
Perfect	V-ing perfect
I can't have ponged you can't have ponged she can't have ponged we can't have ponged you can't have ponged they can't have ponged	I can't have been ponging you can't have been ponging she can't have been ponging we can't have been ponging you can't have been ponging they can't have been ponging

Interrogative form

Simple form	V-ing form
can I pong? can you pong? can she pong? can we pong? can you pong? can they pong?	can I be ponging? can you be ponging? can she be ponging? can we be ponging? can you be ponging? can they be ponging?
Perfect	V-ing perfect
can I have ponged? can you have ponged? can she have ponged? can we have ponged? can you have ponged? can they have ponged?	can I have been ponging? can you have been ponging? can she have been ponging? can we have been ponging? can you have been ponging? can they have been ponging?

Interro-negative form

Simple form	V-ing form
can't I pong? can't you pong? can't she pong? can't we pong? can't you pong? can't they pong?	can't I be ponging? can't you be ponging? can't she be ponging? can't we be ponging? can't you be ponging? can't they be ponging?
Perfect	V-ing perfect
can't I have ponged? can't you have ponged? can't she have ponged? can't we have ponged? can't you have ponged? can't they have ponged?	can't I have been ponging? can't you have been ponging? can't she have been ponging? can't we have been ponging? can't you have been ponging? can't they have been ponging?