English verb conjugation
COULD GONG

Regular verb: gong - gonged - gonged

Affirmation

Simple form	V-ing form
I could gong you could gong he could gong we could gong you could gong they could gong	I could be gonging you could be gonging he could be gonging we could be gonging you could be gonging they could be gonging
Perfect	V-ing perfect
I could have gonged you could have gonged he could have gonged we could have gonged you could have gonged they could have gonged	I could have been gonging you could have been gonging he could have been gonging we could have been gonging you could have been gonging they could have been gonging

Negation

Simple form	V-ing form
I couldn't gong you couldn't gong he couldn't gong we couldn't gong you couldn't gong they couldn't gong	I couldn't be gonging you couldn't be gonging he couldn't be gonging we couldn't be gonging you couldn't be gonging they couldn't be gonging
Perfect	V-ing perfect
I couldn't have gonged you couldn't have gonged he couldn't have gonged we couldn't have gonged you couldn't have gonged they couldn't have gonged	I couldn't have been gonging you couldn't have been gonging he couldn't have been gonging we couldn't have been gonging you couldn't have been gonging they couldn't have been gonging

Interrogative form

Simple form	V-ing form
could I gong? could you gong? could he gong? could we gong? could you gong? could they gong?	could I be gonging? could you be gonging? could he be gonging? could we be gonging? could you be gonging? could they be gonging?
Perfect	V-ing perfect
could I have gonged? could you have gonged? could he have gonged? could we have gonged? could you have gonged? could they have gonged?	could I have been gonging? could you have been gonging? could he have been gonging? could we have been gonging? could you have been gonging? could they have been gonging?

Interro-negative form

Simple form	V-ing form
couldn't I gong? couldn't you gong? couldn't he gong? couldn't we gong? couldn't you gong? couldn't they gong?	couldn't I be gonging? couldn't you be gonging? couldn't he be gonging? couldn't we be gonging? couldn't you be gonging? couldn't they be gonging?
Perfect	V-ing perfect
couldn't I have gonged? couldn't you have gonged? couldn't he have gonged? couldn't we have gonged? couldn't you have gonged? couldn't they have gonged?	couldn't I have been gonging? couldn't you have been gonging? couldn't he have been gonging? couldn't we have been gonging? couldn't you have been gonging? couldn't they have been gonging?