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