English verb conjugation
COULD HAM

Regular verb: ham - hammed - hammed

Affirmation

Simple form	V-ing form
I could ham you could ham she could ham we could ham you could ham they could ham	I could be hamming you could be hamming she could be hamming we could be hamming you could be hamming they could be hamming
Perfect	V-ing perfect
I could have hammed you could have hammed she could have hammed we could have hammed you could have hammed they could have hammed	I could have been hamming you could have been hamming she could have been hamming we could have been hamming you could have been hamming they could have been hamming

Negation

Simple form	V-ing form
I couldn't ham you couldn't ham she couldn't ham we couldn't ham you couldn't ham they couldn't ham	I couldn't be hamming you couldn't be hamming she couldn't be hamming we couldn't be hamming you couldn't be hamming they couldn't be hamming
Perfect	V-ing perfect
I couldn't have hammed you couldn't have hammed she couldn't have hammed we couldn't have hammed you couldn't have hammed they couldn't have hammed	I couldn't have been hamming you couldn't have been hamming she couldn't have been hamming we couldn't have been hamming you couldn't have been hamming they couldn't have been hamming

Interrogative form

Simple form	V-ing form
could I ham? could you ham? could she ham? could we ham? could you ham? could they ham?	could I be hamming? could you be hamming? could she be hamming? could we be hamming? could you be hamming? could they be hamming?
Perfect	V-ing perfect
could I have hammed? could you have hammed? could she have hammed? could we have hammed? could you have hammed? could they have hammed?	could I have been hamming? could you have been hamming? could she have been hamming? could we have been hamming? could you have been hamming? could they have been hamming?

Interro-negative form

Simple form	V-ing form
couldn't I ham? couldn't you ham? couldn't she ham? couldn't we ham? couldn't you ham? couldn't they ham?	couldn't I be hamming? couldn't you be hamming? couldn't she be hamming? couldn't we be hamming? couldn't you be hamming? couldn't they be hamming?
Perfect	V-ing perfect
couldn't I have hammed? couldn't you have hammed? couldn't she have hammed? couldn't we have hammed? couldn't you have hammed? couldn't they have hammed?	couldn't I have been hamming? couldn't you have been hamming? couldn't she have been hamming? couldn't we have been hamming? couldn't you have been hamming? couldn't they have been hamming?