English verb conjugation
COULD CRANE

Regular verb: crane - craned - craned

Affirmation

Simple form	V-ing form
I could crane you could crane he could crane we could crane you could crane they could crane	I could be craning you could be craning he could be craning we could be craning you could be craning they could be craning
Perfect	V-ing perfect
I could have craned you could have craned he could have craned we could have craned you could have craned they could have craned	I could have been craning you could have been craning he could have been craning we could have been craning you could have been craning they could have been craning

Negation

Simple form	V-ing form
I could not crane you could not crane he could not crane we could not crane you could not crane they could not crane	I could not be craning you could not be craning he could not be craning we could not be craning you could not be craning they could not be craning
Perfect	V-ing perfect
I could not have craned you could not have craned he could not have craned we could not have craned you could not have craned they could not have craned	I could not have been craning you could not have been craning he could not have been craning we could not have been craning you could not have been craning they could not have been craning

Interrogative form

Simple form	V-ing form
could I crane? could you crane? could he crane? could we crane? could you crane? could they crane?	could I be craning? could you be craning? could he be craning? could we be craning? could you be craning? could they be craning?
Perfect	V-ing perfect
could I have craned? could you have craned? could he have craned? could we have craned? could you have craned? could they have craned?	could I have been craning? could you have been craning? could he have been craning? could we have been craning? could you have been craning? could they have been craning?

Interro-negative form

Simple form	V-ing form
could I not crane? could you not crane? could he not crane? could we not crane? could you not crane? could they not crane?	could I not be craning? could you not be craning? could he not be craning? could we not be craning? could you not be craning? could they not be craning?
Perfect	V-ing perfect
could I not have craned? could you not have craned? could he not have craned? could we not have craned? could you not have craned? could they not have craned?	could I not have been craning? could you not have been craning? could he not have been craning? could we not have been craning? could you not have been craning? could they not have been craning?