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