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