English verb conjugation
COULD CALCINE

Regular verb: calcine - calcined - calcined

Affirmation

Simple form	V-ing form
I could calcine you could calcine he could calcine we could calcine you could calcine they could calcine	I could be calcining you could be calcining he could be calcining we could be calcining you could be calcining they could be calcining
Perfect	V-ing perfect
I could have calcined you could have calcined he could have calcined we could have calcined you could have calcined they could have calcined	I could have been calcining you could have been calcining he could have been calcining we could have been calcining you could have been calcining they could have been calcining

Negation

Simple form	V-ing form
I could not calcine you could not calcine he could not calcine we could not calcine you could not calcine they could not calcine	I could not be calcining you could not be calcining he could not be calcining we could not be calcining you could not be calcining they could not be calcining
Perfect	V-ing perfect
I could not have calcined you could not have calcined he could not have calcined we could not have calcined you could not have calcined they could not have calcined	I could not have been calcining you could not have been calcining he could not have been calcining we could not have been calcining you could not have been calcining they could not have been calcining

Interrogative form

Simple form	V-ing form
could I calcine? could you calcine? could he calcine? could we calcine? could you calcine? could they calcine?	could I be calcining? could you be calcining? could he be calcining? could we be calcining? could you be calcining? could they be calcining?
Perfect	V-ing perfect
could I have calcined? could you have calcined? could he have calcined? could we have calcined? could you have calcined? could they have calcined?	could I have been calcining? could you have been calcining? could he have been calcining? could we have been calcining? could you have been calcining? could they have been calcining?

Interro-negative form

Simple form	V-ing form
could I not calcine? could you not calcine? could he not calcine? could we not calcine? could you not calcine? could they not calcine?	could I not be calcining? could you not be calcining? could he not be calcining? could we not be calcining? could you not be calcining? could they not be calcining?
Perfect	V-ing perfect
could I not have calcined? could you not have calcined? could he not have calcined? could we not have calcined? could you not have calcined? could they not have calcined?	could I not have been calcining? could you not have been calcining? could he not have been calcining? could we not have been calcining? could you not have been calcining? could they not have been calcining?