English verb conjugation
COULD SPRINT

Regular verb: sprint - sprinted - sprinted

Affirmation

Simple form	V-ing form
I could sprint you could sprint he could sprint we could sprint you could sprint they could sprint	I could be sprinting you could be sprinting he could be sprinting we could be sprinting you could be sprinting they could be sprinting
Perfect	V-ing perfect
I could have sprinted you could have sprinted he could have sprinted we could have sprinted you could have sprinted they could have sprinted	I could have been sprinting you could have been sprinting he could have been sprinting we could have been sprinting you could have been sprinting they could have been sprinting

Negation

Simple form	V-ing form
I could not sprint you could not sprint he could not sprint we could not sprint you could not sprint they could not sprint	I could not be sprinting you could not be sprinting he could not be sprinting we could not be sprinting you could not be sprinting they could not be sprinting
Perfect	V-ing perfect
I could not have sprinted you could not have sprinted he could not have sprinted we could not have sprinted you could not have sprinted they could not have sprinted	I could not have been sprinting you could not have been sprinting he could not have been sprinting we could not have been sprinting you could not have been sprinting they could not have been sprinting

Interrogative form

Simple form	V-ing form
could I sprint? could you sprint? could he sprint? could we sprint? could you sprint? could they sprint?	could I be sprinting? could you be sprinting? could he be sprinting? could we be sprinting? could you be sprinting? could they be sprinting?
Perfect	V-ing perfect
could I have sprinted? could you have sprinted? could he have sprinted? could we have sprinted? could you have sprinted? could they have sprinted?	could I have been sprinting? could you have been sprinting? could he have been sprinting? could we have been sprinting? could you have been sprinting? could they have been sprinting?

Interro-negative form

Simple form	V-ing form
could I not sprint? could you not sprint? could he not sprint? could we not sprint? could you not sprint? could they not sprint?	could I not be sprinting? could you not be sprinting? could he not be sprinting? could we not be sprinting? could you not be sprinting? could they not be sprinting?
Perfect	V-ing perfect
could I not have sprinted? could you not have sprinted? could he not have sprinted? could we not have sprinted? could you not have sprinted? could they not have sprinted?	could I not have been sprinting? could you not have been sprinting? could he not have been sprinting? could we not have been sprinting? could you not have been sprinting? could they not have been sprinting?