could quarry
Regular verb: quarry - quarried- quarried

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