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 couldn't crane you couldn't crane he couldn't crane we couldn't crane you couldn't crane they couldn't crane	I couldn't be craning you couldn't be craning he couldn't be craning we couldn't be craning you couldn't be craning they couldn't be craning
Perfect	V-ing perfect
I couldn't have craned you couldn't have craned he couldn't have craned we couldn't have craned you couldn't have craned they couldn't have craned	I couldn't have been craning you couldn't have been craning he couldn't have been craning we couldn't have been craning you couldn't have been craning they couldn't 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
couldn't I crane? couldn't you crane? couldn't he crane? couldn't we crane? couldn't you crane? couldn't they crane?	couldn't I be craning? couldn't you be craning? couldn't he be craning? couldn't we be craning? couldn't you be craning? couldn't they be craning?
Perfect	V-ing perfect
couldn't I have craned? couldn't you have craned? couldn't he have craned? couldn't we have craned? couldn't you have craned? couldn't they have craned?	couldn't I have been craning? couldn't you have been craning? couldn't he have been craning? couldn't we have been craning? couldn't you have been craning? couldn't they have been craning?