English verb conjugation
COULD ACCOUNT

Regular verb: account - accounted - accounted

Affirmation

Simple form	V-ing form
I could account you could account he could account we could account you could account they could account	I could be accounting you could be accounting he could be accounting we could be accounting you could be accounting they could be accounting
Perfect	V-ing perfect
I could have accounted you could have accounted he could have accounted we could have accounted you could have accounted they could have accounted	I could have been accounting you could have been accounting he could have been accounting we could have been accounting you could have been accounting they could have been accounting

Negation

Simple form	V-ing form
I could not account you could not account he could not account we could not account you could not account they could not account	I could not be accounting you could not be accounting he could not be accounting we could not be accounting you could not be accounting they could not be accounting
Perfect	V-ing perfect
I could not have accounted you could not have accounted he could not have accounted we could not have accounted you could not have accounted they could not have accounted	I could not have been accounting you could not have been accounting he could not have been accounting we could not have been accounting you could not have been accounting they could not have been accounting

Interrogative form

Simple form	V-ing form
could I account? could you account? could he account? could we account? could you account? could they account?	could I be accounting? could you be accounting? could he be accounting? could we be accounting? could you be accounting? could they be accounting?
Perfect	V-ing perfect
could I have accounted? could you have accounted? could he have accounted? could we have accounted? could you have accounted? could they have accounted?	could I have been accounting? could you have been accounting? could he have been accounting? could we have been accounting? could you have been accounting? could they have been accounting?

Interro-negative form

Simple form	V-ing form
could I not account? could you not account? could he not account? could we not account? could you not account? could they not account?	could I not be accounting? could you not be accounting? could he not be accounting? could we not be accounting? could you not be accounting? could they not be accounting?
Perfect	V-ing perfect
could I not have accounted? could you not have accounted? could he not have accounted? could we not have accounted? could you not have accounted? could they not have accounted?	could I not have been accounting? could you not have been accounting? could he not have been accounting? could we not have been accounting? could you not have been accounting? could they not have been accounting?