I can enamel you can enamel she can enamel we can enamel you can enamel they can enamel
V-ing form
I can be enamelling you can be enamelling she can be enamelling we can be enamelling you can be enamelling they can be enamelling
Perfect
I can have enamelled you can have enamelled she can have enamelled we can have enamelled you can have enamelled they can have enamelled
V-ing perfect
I can have been enamelling you can have been enamelling she can have been enamelling we can have been enamelling you can have been enamelling they can have been enamelling
Negation
Simple form
I can't enamel you can't enamel she can't enamel we can't enamel you can't enamel they can't enamel
V-ing form
I can't be enamelling you can't be enamelling she can't be enamelling we can't be enamelling you can't be enamelling they can't be enamelling
Perfect
I can't have enamelled you can't have enamelled she can't have enamelled we can't have enamelled you can't have enamelled they can't have enamelled
V-ing perfect
I can't have been enamelling you can't have been enamelling she can't have been enamelling we can't have been enamelling you can't have been enamelling they can't have been enamelling
Interrogative form
Simple form
can I enamel? can you enamel? can she enamel? can we enamel? can you enamel? can they enamel?
V-ing form
can I be enamelling? can you be enamelling? can she be enamelling? can we be enamelling? can you be enamelling? can they be enamelling?
Perfect
can I have enamelled? can you have enamelled? can she have enamelled? can we have enamelled? can you have enamelled? can they have enamelled?
V-ing perfect
can I have been enamelling? can you have been enamelling? can she have been enamelling? can we have been enamelling? can you have been enamelling? can they have been enamelling?
Interro-negative form
Simple form
can't I enamel? can't you enamel? can't she enamel? can't we enamel? can't you enamel? can't they enamel?
V-ing form
can't I be enamelling? can't you be enamelling? can't she be enamelling? can't we be enamelling? can't you be enamelling? can't they be enamelling?
Perfect
can't I have enamelled? can't you have enamelled? can't she have enamelled? can't we have enamelled? can't you have enamelled? can't they have enamelled?
V-ing perfect
can't I have been enamelling? can't you have been enamelling? can't she have been enamelling? can't we have been enamelling? can't you have been enamelling? can't they have been enamelling?