English verb conjugation
COULD ENAMEL

Regular verb: enamel - enamelled - enamelled

Affirmation

Simple form	V-ing form
I could enamel you could enamel she could enamel we could enamel you could enamel they could enamel	I could be enamelling you could be enamelling she could be enamelling we could be enamelling you could be enamelling they could be enamelling
Perfect	V-ing perfect
I could have enamelled you could have enamelled she could have enamelled we could have enamelled you could have enamelled they could have enamelled	I could have been enamelling you could have been enamelling she could have been enamelling we could have been enamelling you could have been enamelling they could have been enamelling

Negation

Simple form	V-ing form
I could not enamel you could not enamel she could not enamel we could not enamel you could not enamel they could not enamel	I could not be enamelling you could not be enamelling she could not be enamelling we could not be enamelling you could not be enamelling they could not be enamelling
Perfect	V-ing perfect
I could not have enamelled you could not have enamelled she could not have enamelled we could not have enamelled you could not have enamelled they could not have enamelled	I could not have been enamelling you could not have been enamelling she could not have been enamelling we could not have been enamelling you could not have been enamelling they could not have been enamelling

Interrogative form

Simple form	V-ing form
could I enamel? could you enamel? could she enamel? could we enamel? could you enamel? could they enamel?	could I be enamelling? could you be enamelling? could she be enamelling? could we be enamelling? could you be enamelling? could they be enamelling?
Perfect	V-ing perfect
could I have enamelled? could you have enamelled? could she have enamelled? could we have enamelled? could you have enamelled? could they have enamelled?	could I have been enamelling? could you have been enamelling? could she have been enamelling? could we have been enamelling? could you have been enamelling? could they have been enamelling?

Interro-negative form

Simple form	V-ing form
could I not enamel? could you not enamel? could she not enamel? could we not enamel? could you not enamel? could they not enamel?	could I not be enamelling? could you not be enamelling? could she not be enamelling? could we not be enamelling? could you not be enamelling? could they not be enamelling?
Perfect	V-ing perfect
could I not have enamelled? could you not have enamelled? could she not have enamelled? could we not have enamelled? could you not have enamelled? could they not have enamelled?	could I not have been enamelling? could you not have been enamelling? could she not have been enamelling? could we not have been enamelling? could you not have been enamelling? could they not have been enamelling?