English verb conjugation
COULD CRASH-DIVE

Regular verb: crash-dive - crash-dived - crash-dived

Affirmation

Simple form	V-ing form
I could crash-dive you could crash-dive he could crash-dive we could crash-dive you could crash-dive they could crash-dive	I could be crash-diving you could be crash-diving he could be crash-diving we could be crash-diving you could be crash-diving they could be crash-diving
Perfect	V-ing perfect
I could have crash-dived you could have crash-dived he could have crash-dived we could have crash-dived you could have crash-dived they could have crash-dived	I could have been crash-diving you could have been crash-diving he could have been crash-diving we could have been crash-diving you could have been crash-diving they could have been crash-diving

Negation

Simple form	V-ing form
I could not crash-dive you could not crash-dive he could not crash-dive we could not crash-dive you could not crash-dive they could not crash-dive	I could not be crash-diving you could not be crash-diving he could not be crash-diving we could not be crash-diving you could not be crash-diving they could not be crash-diving
Perfect	V-ing perfect
I could not have crash-dived you could not have crash-dived he could not have crash-dived we could not have crash-dived you could not have crash-dived they could not have crash-dived	I could not have been crash-diving you could not have been crash-diving he could not have been crash-diving we could not have been crash-diving you could not have been crash-diving they could not have been crash-diving

Interrogative form

Simple form	V-ing form
could I crash-dive? could you crash-dive? could he crash-dive? could we crash-dive? could you crash-dive? could they crash-dive?	could I be crash-diving? could you be crash-diving? could he be crash-diving? could we be crash-diving? could you be crash-diving? could they be crash-diving?
Perfect	V-ing perfect
could I have crash-dived? could you have crash-dived? could he have crash-dived? could we have crash-dived? could you have crash-dived? could they have crash-dived?	could I have been crash-diving? could you have been crash-diving? could he have been crash-diving? could we have been crash-diving? could you have been crash-diving? could they have been crash-diving?

Interro-negative form

Simple form	V-ing form
could I not crash-dive? could you not crash-dive? could he not crash-dive? could we not crash-dive? could you not crash-dive? could they not crash-dive?	could I not be crash-diving? could you not be crash-diving? could he not be crash-diving? could we not be crash-diving? could you not be crash-diving? could they not be crash-diving?
Perfect	V-ing perfect
could I not have crash-dived? could you not have crash-dived? could he not have crash-dived? could we not have crash-dived? could you not have crash-dived? could they not have crash-dived?	could I not have been crash-diving? could you not have been crash-diving? could he not have been crash-diving? could we not have been crash-diving? could you not have been crash-diving? could they not have been crash-diving?