English verb conjugation
COULD OVERHEAT

Regular verb: overheat - overheated - overheated

Affirmation

Simple form	V-ing form
I could overheat you could overheat he could overheat we could overheat you could overheat they could overheat	I could be overheating you could be overheating he could be overheating we could be overheating you could be overheating they could be overheating
Perfect	V-ing perfect
I could have overheated you could have overheated he could have overheated we could have overheated you could have overheated they could have overheated	I could have been overheating you could have been overheating he could have been overheating we could have been overheating you could have been overheating they could have been overheating

Negation

Simple form	V-ing form
I could not overheat you could not overheat he could not overheat we could not overheat you could not overheat they could not overheat	I could not be overheating you could not be overheating he could not be overheating we could not be overheating you could not be overheating they could not be overheating
Perfect	V-ing perfect
I could not have overheated you could not have overheated he could not have overheated we could not have overheated you could not have overheated they could not have overheated	I could not have been overheating you could not have been overheating he could not have been overheating we could not have been overheating you could not have been overheating they could not have been overheating

Interrogative form

Simple form	V-ing form
could I overheat? could you overheat? could he overheat? could we overheat? could you overheat? could they overheat?	could I be overheating? could you be overheating? could he be overheating? could we be overheating? could you be overheating? could they be overheating?
Perfect	V-ing perfect
could I have overheated? could you have overheated? could he have overheated? could we have overheated? could you have overheated? could they have overheated?	could I have been overheating? could you have been overheating? could he have been overheating? could we have been overheating? could you have been overheating? could they have been overheating?

Interro-negative form

Simple form	V-ing form
could I not overheat? could you not overheat? could he not overheat? could we not overheat? could you not overheat? could they not overheat?	could I not be overheating? could you not be overheating? could he not be overheating? could we not be overheating? could you not be overheating? could they not be overheating?
Perfect	V-ing perfect
could I not have overheated? could you not have overheated? could he not have overheated? could we not have overheated? could you not have overheated? could they not have overheated?	could I not have been overheating? could you not have been overheating? could he not have been overheating? could we not have been overheating? could you not have been overheating? could they not have been overheating?