English verb conjugation
COULD TONG

Regular verb: tong - tonged - tonged

Affirmation

Simple form	V-ing form
I could tong you could tong he could tong we could tong you could tong they could tong	I could be tonging you could be tonging he could be tonging we could be tonging you could be tonging they could be tonging
Perfect	V-ing perfect
I could have tonged you could have tonged he could have tonged we could have tonged you could have tonged they could have tonged	I could have been tonging you could have been tonging he could have been tonging we could have been tonging you could have been tonging they could have been tonging

Negation

Simple form	V-ing form
I couldn't tong you couldn't tong he couldn't tong we couldn't tong you couldn't tong they couldn't tong	I couldn't be tonging you couldn't be tonging he couldn't be tonging we couldn't be tonging you couldn't be tonging they couldn't be tonging
Perfect	V-ing perfect
I couldn't have tonged you couldn't have tonged he couldn't have tonged we couldn't have tonged you couldn't have tonged they couldn't have tonged	I couldn't have been tonging you couldn't have been tonging he couldn't have been tonging we couldn't have been tonging you couldn't have been tonging they couldn't have been tonging

Interrogative form

Simple form	V-ing form
could I tong? could you tong? could he tong? could we tong? could you tong? could they tong?	could I be tonging? could you be tonging? could he be tonging? could we be tonging? could you be tonging? could they be tonging?
Perfect	V-ing perfect
could I have tonged? could you have tonged? could he have tonged? could we have tonged? could you have tonged? could they have tonged?	could I have been tonging? could you have been tonging? could he have been tonging? could we have been tonging? could you have been tonging? could they have been tonging?

Interro-negative form

Simple form	V-ing form
couldn't I tong? couldn't you tong? couldn't he tong? couldn't we tong? couldn't you tong? couldn't they tong?	couldn't I be tonging? couldn't you be tonging? couldn't he be tonging? couldn't we be tonging? couldn't you be tonging? couldn't they be tonging?
Perfect	V-ing perfect
couldn't I have tonged? couldn't you have tonged? couldn't he have tonged? couldn't we have tonged? couldn't you have tonged? couldn't they have tonged?	couldn't I have been tonging? couldn't you have been tonging? couldn't he have been tonging? couldn't we have been tonging? couldn't you have been tonging? couldn't they have been tonging?