English verb conjugation
COULD MINE

Regular verb: mine - mined - mined

Affirmation

Simple form	V-ing form
I could mine you could mine she could mine we could mine you could mine they could mine	I could be mining you could be mining she could be mining we could be mining you could be mining they could be mining
Perfect	V-ing perfect
I could have mined you could have mined she could have mined we could have mined you could have mined they could have mined	I could have been mining you could have been mining she could have been mining we could have been mining you could have been mining they could have been mining

Negation

Simple form	V-ing form
I couldn't mine you couldn't mine she couldn't mine we couldn't mine you couldn't mine they couldn't mine	I couldn't be mining you couldn't be mining she couldn't be mining we couldn't be mining you couldn't be mining they couldn't be mining
Perfect	V-ing perfect
I couldn't have mined you couldn't have mined she couldn't have mined we couldn't have mined you couldn't have mined they couldn't have mined	I couldn't have been mining you couldn't have been mining she couldn't have been mining we couldn't have been mining you couldn't have been mining they couldn't have been mining

Interrogative form

Simple form	V-ing form
could I mine? could you mine? could she mine? could we mine? could you mine? could they mine?	could I be mining? could you be mining? could she be mining? could we be mining? could you be mining? could they be mining?
Perfect	V-ing perfect
could I have mined? could you have mined? could she have mined? could we have mined? could you have mined? could they have mined?	could I have been mining? could you have been mining? could she have been mining? could we have been mining? could you have been mining? could they have been mining?

Interro-negative form

Simple form	V-ing form
couldn't I mine? couldn't you mine? couldn't she mine? couldn't we mine? couldn't you mine? couldn't they mine?	couldn't I be mining? couldn't you be mining? couldn't she be mining? couldn't we be mining? couldn't you be mining? couldn't they be mining?
Perfect	V-ing perfect
couldn't I have mined? couldn't you have mined? couldn't she have mined? couldn't we have mined? couldn't you have mined? couldn't they have mined?	couldn't I have been mining? couldn't you have been mining? couldn't she have been mining? couldn't we have been mining? couldn't you have been mining? couldn't they have been mining?