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