English verb conjugation
COULD QUARRY

Regular verb: quarry - quarried - quarried

Affirmation

Simple form	V-ing form
I could quarry you could quarry she could quarry we could quarry you could quarry they could quarry	I could be quarrying you could be quarrying she could be quarrying we could be quarrying you could be quarrying they could be quarrying
Perfect	V-ing perfect
I could have quarried you could have quarried she could have quarried we could have quarried you could have quarried they could have quarried	I could have been quarrying you could have been quarrying she could have been quarrying we could have been quarrying you could have been quarrying they could have been quarrying

Negation

Simple form	V-ing form
I could not quarry you could not quarry she could not quarry we could not quarry you could not quarry they could not quarry	I could not be quarrying you could not be quarrying she could not be quarrying we could not be quarrying you could not be quarrying they could not be quarrying
Perfect	V-ing perfect
I could not have quarried you could not have quarried she could not have quarried we could not have quarried you could not have quarried they could not have quarried	I could not have been quarrying you could not have been quarrying she could not have been quarrying we could not have been quarrying you could not have been quarrying they could not have been quarrying

Interrogative form

Simple form	V-ing form
could I quarry? could you quarry? could she quarry? could we quarry? could you quarry? could they quarry?	could I be quarrying? could you be quarrying? could she be quarrying? could we be quarrying? could you be quarrying? could they be quarrying?
Perfect	V-ing perfect
could I have quarried? could you have quarried? could she have quarried? could we have quarried? could you have quarried? could they have quarried?	could I have been quarrying? could you have been quarrying? could she have been quarrying? could we have been quarrying? could you have been quarrying? could they have been quarrying?

Interro-negative form

Simple form	V-ing form
could I not quarry? could you not quarry? could she not quarry? could we not quarry? could you not quarry? could they not quarry?	could I not be quarrying? could you not be quarrying? could she not be quarrying? could we not be quarrying? could you not be quarrying? could they not be quarrying?
Perfect	V-ing perfect
could I not have quarried? could you not have quarried? could she not have quarried? could we not have quarried? could you not have quarried? could they not have quarried?	could I not have been quarrying? could you not have been quarrying? could she not have been quarrying? could we not have been quarrying? could you not have been quarrying? could they not have been quarrying?