I can enamel you can enamel he can enamel we can enamel you can enamel they can enamel
V-ing form
I can be enamelling you can be enamelling he can be enamelling we can be enamelling you can be enamelling they can be enamelling
Perfect
I can have enamelled you can have enamelled he 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 he 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 he 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 he 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 he 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 he 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 he enamel? can we enamel? can you enamel? can they enamel?
V-ing form
can I be enamelling? can you be enamelling? can he be enamelling? can we be enamelling? can you be enamelling? can they be enamelling?
Perfect
can I have enamelled? can you have enamelled? can he 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 he 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 he 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 he 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 he 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 he have been enamelling? can't we have been enamelling? can't you have been enamelling? can't they have been enamelling?