I could sculpt you could sculpt he could sculpt we could sculpt you could sculpt they could sculpt
V-ing form
I could be sculpting you could be sculpting he could be sculpting we could be sculpting you could be sculpting they could be sculpting
Perfect
I could have sculpted you could have sculpted he could have sculpted we could have sculpted you could have sculpted they could have sculpted
V-ing perfect
I could have been sculpting you could have been sculpting he could have been sculpting we could have been sculpting you could have been sculpting they could have been sculpting
Negation
Simple form
I couldn't sculpt you couldn't sculpt he couldn't sculpt we couldn't sculpt you couldn't sculpt they couldn't sculpt
V-ing form
I couldn't be sculpting you couldn't be sculpting he couldn't be sculpting we couldn't be sculpting you couldn't be sculpting they couldn't be sculpting
Perfect
I couldn't have sculpted you couldn't have sculpted he couldn't have sculpted we couldn't have sculpted you couldn't have sculpted they couldn't have sculpted
V-ing perfect
I couldn't have been sculpting you couldn't have been sculpting he couldn't have been sculpting we couldn't have been sculpting you couldn't have been sculpting they couldn't have been sculpting
Interrogative form
Simple form
could I sculpt? could you sculpt? could he sculpt? could we sculpt? could you sculpt? could they sculpt?
V-ing form
could I be sculpting? could you be sculpting? could he be sculpting? could we be sculpting? could you be sculpting? could they be sculpting?
Perfect
could I have sculpted? could you have sculpted? could he have sculpted? could we have sculpted? could you have sculpted? could they have sculpted?
V-ing perfect
could I have been sculpting? could you have been sculpting? could he have been sculpting? could we have been sculpting? could you have been sculpting? could they have been sculpting?
Interro-negative form
Simple form
couldn't I sculpt? couldn't you sculpt? couldn't he sculpt? couldn't we sculpt? couldn't you sculpt? couldn't they sculpt?
V-ing form
couldn't I be sculpting? couldn't you be sculpting? couldn't he be sculpting? couldn't we be sculpting? couldn't you be sculpting? couldn't they be sculpting?
Perfect
couldn't I have sculpted? couldn't you have sculpted? couldn't he have sculpted? couldn't we have sculpted? couldn't you have sculpted? couldn't they have sculpted?
V-ing perfect
couldn't I have been sculpting? couldn't you have been sculpting? couldn't he have been sculpting? couldn't we have been sculpting? couldn't you have been sculpting? couldn't they have been sculpting?