English verb conjugation
COULD EMPLANE

Regular verb: emplane - emplaned - emplaned

Affirmation

Simple form	V-ing form
I could emplane you could emplane he could emplane we could emplane you could emplane they could emplane	I could be emplaning you could be emplaning he could be emplaning we could be emplaning you could be emplaning they could be emplaning
Perfect	V-ing perfect
I could have emplaned you could have emplaned he could have emplaned we could have emplaned you could have emplaned they could have emplaned	I could have been emplaning you could have been emplaning he could have been emplaning we could have been emplaning you could have been emplaning they could have been emplaning

Negation

Simple form	V-ing form
I could not emplane you could not emplane he could not emplane we could not emplane you could not emplane they could not emplane	I could not be emplaning you could not be emplaning he could not be emplaning we could not be emplaning you could not be emplaning they could not be emplaning
Perfect	V-ing perfect
I could not have emplaned you could not have emplaned he could not have emplaned we could not have emplaned you could not have emplaned they could not have emplaned	I could not have been emplaning you could not have been emplaning he could not have been emplaning we could not have been emplaning you could not have been emplaning they could not have been emplaning

Interrogative form

Simple form	V-ing form
could I emplane? could you emplane? could he emplane? could we emplane? could you emplane? could they emplane?	could I be emplaning? could you be emplaning? could he be emplaning? could we be emplaning? could you be emplaning? could they be emplaning?
Perfect	V-ing perfect
could I have emplaned? could you have emplaned? could he have emplaned? could we have emplaned? could you have emplaned? could they have emplaned?	could I have been emplaning? could you have been emplaning? could he have been emplaning? could we have been emplaning? could you have been emplaning? could they have been emplaning?

Interro-negative form

Simple form	V-ing form
could I not emplane? could you not emplane? could he not emplane? could we not emplane? could you not emplane? could they not emplane?	could I not be emplaning? could you not be emplaning? could he not be emplaning? could we not be emplaning? could you not be emplaning? could they not be emplaning?
Perfect	V-ing perfect
could I not have emplaned? could you not have emplaned? could he not have emplaned? could we not have emplaned? could you not have emplaned? could they not have emplaned?	could I not have been emplaning? could you not have been emplaning? could he not have been emplaning? could we not have been emplaning? could you not have been emplaning? could they not have been emplaning?