English verb conjugation
COULD HAM

Regular verb: ham - hammed - hammed

Affirmation

Simple form	V-ing form
I could ham you could ham he could ham we could ham you could ham they could ham	I could be hamming you could be hamming he 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 he 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 he 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 he 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 he 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 he 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 he 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 he ham? could we ham? could you ham? could they ham?	could I be hamming? could you be hamming? could he 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 he 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 he 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 he 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 he 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 he 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 he have been hamming? couldn't we have been hamming? couldn't you have been hamming? couldn't they have been hamming?