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 couldn't mambo you couldn't mambo he couldn't mambo we couldn't mambo you couldn't mambo they couldn't mambo	I couldn't be mamboing you couldn't be mamboing he couldn't be mamboing we couldn't be mamboing you couldn't be mamboing they couldn't be mamboing
Perfect	V-ing perfect
I couldn't have mamboed you couldn't have mamboed he couldn't have mamboed we couldn't have mamboed you couldn't have mamboed they couldn't have mamboed	I couldn't have been mamboing you couldn't have been mamboing he couldn't have been mamboing we couldn't have been mamboing you couldn't have been mamboing they couldn't 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
couldn't I mambo? couldn't you mambo? couldn't he mambo? couldn't we mambo? couldn't you mambo? couldn't they mambo?	couldn't I be mamboing? couldn't you be mamboing? couldn't he be mamboing? couldn't we be mamboing? couldn't you be mamboing? couldn't they be mamboing?
Perfect	V-ing perfect
couldn't I have mamboed? couldn't you have mamboed? couldn't he have mamboed? couldn't we have mamboed? couldn't you have mamboed? couldn't they have mamboed?	couldn't I have been mamboing? couldn't you have been mamboing? couldn't he have been mamboing? couldn't we have been mamboing? couldn't you have been mamboing? couldn't they have been mamboing?