English verb conjugation
COULD TONG

Regular verb: tong - tonged - tonged

Affirmation

Simple form	V-ing form
I could tong you could tong she could tong we could tong you could tong they could tong	I could be tonging you could be tonging she 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 she 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 she 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 could not tong you could not tong she could not tong we could not tong you could not tong they could not tong	I could not be tonging you could not be tonging she could not be tonging we could not be tonging you could not be tonging they could not be tonging
Perfect	V-ing perfect
I could not have tonged you could not have tonged she could not have tonged we could not have tonged you could not have tonged they could not have tonged	I could not have been tonging you could not have been tonging she could not have been tonging we could not have been tonging you could not have been tonging they could not have been tonging

Interrogative form

Simple form	V-ing form
could I tong? could you tong? could she tong? could we tong? could you tong? could they tong?	could I be tonging? could you be tonging? could she 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 she 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 she 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
could I not tong? could you not tong? could she not tong? could we not tong? could you not tong? could they not tong?	could I not be tonging? could you not be tonging? could she not be tonging? could we not be tonging? could you not be tonging? could they not be tonging?
Perfect	V-ing perfect
could I not have tonged? could you not have tonged? could she not have tonged? could we not have tonged? could you not have tonged? could they not have tonged?	could I not have been tonging? could you not have been tonging? could she not have been tonging? could we not have been tonging? could you not have been tonging? could they not have been tonging?