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 couldn't enamel you couldn't enamel she couldn't enamel we couldn't enamel you couldn't enamel they couldn't enamel	I couldn't be enamelling you couldn't be enamelling she couldn't be enamelling we couldn't be enamelling you couldn't be enamelling they couldn't be enamelling
Perfect	V-ing perfect
I couldn't have enamelled you couldn't have enamelled she couldn't have enamelled we couldn't have enamelled you couldn't have enamelled they couldn't have enamelled	I couldn't have been enamelling you couldn't have been enamelling she couldn't have been enamelling we couldn't have been enamelling you couldn't have been enamelling they couldn't 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
couldn't I enamel? couldn't you enamel? couldn't she enamel? couldn't we enamel? couldn't you enamel? couldn't they enamel?	couldn't I be enamelling? couldn't you be enamelling? couldn't she be enamelling? couldn't we be enamelling? couldn't you be enamelling? couldn't they be enamelling?
Perfect	V-ing perfect
couldn't I have enamelled? couldn't you have enamelled? couldn't she have enamelled? couldn't we have enamelled? couldn't you have enamelled? couldn't they have enamelled?	couldn't I have been enamelling? couldn't you have been enamelling? couldn't she have been enamelling? couldn't we have been enamelling? couldn't you have been enamelling? couldn't they have been enamelling?