English verb conjugation
COULD NOTE

Regular verb: note - noted - noted

Affirmation

Simple form	V-ing form
I could note you could note she could note we could note you could note they could note	I could be noting you could be noting she could be noting we could be noting you could be noting they could be noting
Perfect	V-ing perfect
I could have noted you could have noted she could have noted we could have noted you could have noted they could have noted	I could have been noting you could have been noting she could have been noting we could have been noting you could have been noting they could have been noting

Negation

Simple form	V-ing form
I could not note you could not note she could not note we could not note you could not note they could not note	I could not be noting you could not be noting she could not be noting we could not be noting you could not be noting they could not be noting
Perfect	V-ing perfect
I could not have noted you could not have noted she could not have noted we could not have noted you could not have noted they could not have noted	I could not have been noting you could not have been noting she could not have been noting we could not have been noting you could not have been noting they could not have been noting

Interrogative form

Simple form	V-ing form
could I note? could you note? could she note? could we note? could you note? could they note?	could I be noting? could you be noting? could she be noting? could we be noting? could you be noting? could they be noting?
Perfect	V-ing perfect
could I have noted? could you have noted? could she have noted? could we have noted? could you have noted? could they have noted?	could I have been noting? could you have been noting? could she have been noting? could we have been noting? could you have been noting? could they have been noting?

Interro-negative form

Simple form	V-ing form
could I not note? could you not note? could she not note? could we not note? could you not note? could they not note?	could I not be noting? could you not be noting? could she not be noting? could we not be noting? could you not be noting? could they not be noting?
Perfect	V-ing perfect
could I not have noted? could you not have noted? could she not have noted? could we not have noted? could you not have noted? could they not have noted?	could I not have been noting? could you not have been noting? could she not have been noting? could we not have been noting? could you not have been noting? could they not have been noting?