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