English verb conjugation
COULD MISCALCULATE

Regular verb: miscalculate - miscalculated - miscalculated

Affirmation

Simple form	V-ing form
I could miscalculate you could miscalculate he could miscalculate we could miscalculate you could miscalculate they could miscalculate	I could be miscalculating you could be miscalculating he could be miscalculating we could be miscalculating you could be miscalculating they could be miscalculating
Perfect	V-ing perfect
I could have miscalculated you could have miscalculated he could have miscalculated we could have miscalculated you could have miscalculated they could have miscalculated	I could have been miscalculating you could have been miscalculating he could have been miscalculating we could have been miscalculating you could have been miscalculating they could have been miscalculating

Negation

Simple form	V-ing form
I could not miscalculate you could not miscalculate he could not miscalculate we could not miscalculate you could not miscalculate they could not miscalculate	I could not be miscalculating you could not be miscalculating he could not be miscalculating we could not be miscalculating you could not be miscalculating they could not be miscalculating
Perfect	V-ing perfect
I could not have miscalculated you could not have miscalculated he could not have miscalculated we could not have miscalculated you could not have miscalculated they could not have miscalculated	I could not have been miscalculating you could not have been miscalculating he could not have been miscalculating we could not have been miscalculating you could not have been miscalculating they could not have been miscalculating

Interrogative form

Simple form	V-ing form
could I miscalculate? could you miscalculate? could he miscalculate? could we miscalculate? could you miscalculate? could they miscalculate?	could I be miscalculating? could you be miscalculating? could he be miscalculating? could we be miscalculating? could you be miscalculating? could they be miscalculating?
Perfect	V-ing perfect
could I have miscalculated? could you have miscalculated? could he have miscalculated? could we have miscalculated? could you have miscalculated? could they have miscalculated?	could I have been miscalculating? could you have been miscalculating? could he have been miscalculating? could we have been miscalculating? could you have been miscalculating? could they have been miscalculating?

Interro-negative form

Simple form	V-ing form
could I not miscalculate? could you not miscalculate? could he not miscalculate? could we not miscalculate? could you not miscalculate? could they not miscalculate?	could I not be miscalculating? could you not be miscalculating? could he not be miscalculating? could we not be miscalculating? could you not be miscalculating? could they not be miscalculating?
Perfect	V-ing perfect
could I not have miscalculated? could you not have miscalculated? could he not have miscalculated? could we not have miscalculated? could you not have miscalculated? could they not have miscalculated?	could I not have been miscalculating? could you not have been miscalculating? could he not have been miscalculating? could we not have been miscalculating? could you not have been miscalculating? could they not have been miscalculating?