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