English verb conjugation
COULD OVERHEAT

Regular verb: overheat - overheated - overheated

Affirmation

Simple form	V-ing form
I could overheat you could overheat she could overheat we could overheat you could overheat they could overheat	I could be overheating you could be overheating she 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 she 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 she 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 couldn't overheat you couldn't overheat she couldn't overheat we couldn't overheat you couldn't overheat they couldn't overheat	I couldn't be overheating you couldn't be overheating she couldn't be overheating we couldn't be overheating you couldn't be overheating they couldn't be overheating
Perfect	V-ing perfect
I couldn't have overheated you couldn't have overheated she couldn't have overheated we couldn't have overheated you couldn't have overheated they couldn't have overheated	I couldn't have been overheating you couldn't have been overheating she couldn't have been overheating we couldn't have been overheating you couldn't have been overheating they couldn't have been overheating

Interrogative form

Simple form	V-ing form
could I overheat? could you overheat? could she overheat? could we overheat? could you overheat? could they overheat?	could I be overheating? could you be overheating? could she 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 she 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 she 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
couldn't I overheat? couldn't you overheat? couldn't she overheat? couldn't we overheat? couldn't you overheat? couldn't they overheat?	couldn't I be overheating? couldn't you be overheating? couldn't she be overheating? couldn't we be overheating? couldn't you be overheating? couldn't they be overheating?
Perfect	V-ing perfect
couldn't I have overheated? couldn't you have overheated? couldn't she have overheated? couldn't we have overheated? couldn't you have overheated? couldn't they have overheated?	couldn't I have been overheating? couldn't you have been overheating? couldn't she have been overheating? couldn't we have been overheating? couldn't you have been overheating? couldn't they have been overheating?