English verb conjugation
COULD STRIP-MINE

Regular verb: strip-mine - strip-mined - strip-mined

Affirmation

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

Negation

Simple form	V-ing form
I could not strip-mine you could not strip-mine he could not strip-mine we could not strip-mine you could not strip-mine they could not strip-mine	I could not be strip-mining you could not be strip-mining he could not be strip-mining we could not be strip-mining you could not be strip-mining they could not be strip-mining
Perfect	V-ing perfect
I could not have strip-mined you could not have strip-mined he could not have strip-mined we could not have strip-mined you could not have strip-mined they could not have strip-mined	I could not have been strip-mining you could not have been strip-mining he could not have been strip-mining we could not have been strip-mining you could not have been strip-mining they could not have been strip-mining

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not strip-mine? could you not strip-mine? could he not strip-mine? could we not strip-mine? could you not strip-mine? could they not strip-mine?	could I not be strip-mining? could you not be strip-mining? could he not be strip-mining? could we not be strip-mining? could you not be strip-mining? could they not be strip-mining?
Perfect	V-ing perfect
could I not have strip-mined? could you not have strip-mined? could he not have strip-mined? could we not have strip-mined? could you not have strip-mined? could they not have strip-mined?	could I not have been strip-mining? could you not have been strip-mining? could he not have been strip-mining? could we not have been strip-mining? could you not have been strip-mining? could they not have been strip-mining?