English verb conjugation
COULD MAMBO

Regular verb: mambo - mamboed - mamboed

Affirmation

Simple form	V-ing form
I could mambo you could mambo he could mambo we could mambo you could mambo they could mambo	I could be mamboing you could be mamboing he could be mamboing we could be mamboing you could be mamboing they could be mamboing
Perfect	V-ing perfect
I could have mamboed you could have mamboed he could have mamboed we could have mamboed you could have mamboed they could have mamboed	I could have been mamboing you could have been mamboing he could have been mamboing we could have been mamboing you could have been mamboing they could have been mamboing

Negation

Simple form	V-ing form
I could not mambo you could not mambo he could not mambo we could not mambo you could not mambo they could not mambo	I could not be mamboing you could not be mamboing he could not be mamboing we could not be mamboing you could not be mamboing they could not be mamboing
Perfect	V-ing perfect
I could not have mamboed you could not have mamboed he could not have mamboed we could not have mamboed you could not have mamboed they could not have mamboed	I could not have been mamboing you could not have been mamboing he could not have been mamboing we could not have been mamboing you could not have been mamboing they could not have been mamboing

Interrogative form

Simple form	V-ing form
could I mambo? could you mambo? could he mambo? could we mambo? could you mambo? could they mambo?	could I be mamboing? could you be mamboing? could he be mamboing? could we be mamboing? could you be mamboing? could they be mamboing?
Perfect	V-ing perfect
could I have mamboed? could you have mamboed? could he have mamboed? could we have mamboed? could you have mamboed? could they have mamboed?	could I have been mamboing? could you have been mamboing? could he have been mamboing? could we have been mamboing? could you have been mamboing? could they have been mamboing?

Interro-negative form

Simple form	V-ing form
could I not mambo? could you not mambo? could he not mambo? could we not mambo? could you not mambo? could they not mambo?	could I not be mamboing? could you not be mamboing? could he not be mamboing? could we not be mamboing? could you not be mamboing? could they not be mamboing?
Perfect	V-ing perfect
could I not have mamboed? could you not have mamboed? could he not have mamboed? could we not have mamboed? could you not have mamboed? could they not have mamboed?	could I not have been mamboing? could you not have been mamboing? could he not have been mamboing? could we not have been mamboing? could you not have been mamboing? could they not have been mamboing?