I could marginalise you could marginalise she could marginalise we could marginalise you could marginalise they could marginalise
V-ing form
I could be marginalising you could be marginalising she could be marginalising we could be marginalising you could be marginalising they could be marginalising
Perfect
I could have marginalised you could have marginalised she could have marginalised we could have marginalised you could have marginalised they could have marginalised
V-ing perfect
I could have been marginalising you could have been marginalising she could have been marginalising we could have been marginalising you could have been marginalising they could have been marginalising
Negation
Simple form
I couldn't marginalise you couldn't marginalise she couldn't marginalise we couldn't marginalise you couldn't marginalise they couldn't marginalise
V-ing form
I couldn't be marginalising you couldn't be marginalising she couldn't be marginalising we couldn't be marginalising you couldn't be marginalising they couldn't be marginalising
Perfect
I couldn't have marginalised you couldn't have marginalised she couldn't have marginalised we couldn't have marginalised you couldn't have marginalised they couldn't have marginalised
V-ing perfect
I couldn't have been marginalising you couldn't have been marginalising she couldn't have been marginalising we couldn't have been marginalising you couldn't have been marginalising they couldn't have been marginalising
Interrogative form
Simple form
could I marginalise? could you marginalise? could she marginalise? could we marginalise? could you marginalise? could they marginalise?
V-ing form
could I be marginalising? could you be marginalising? could she be marginalising? could we be marginalising? could you be marginalising? could they be marginalising?
Perfect
could I have marginalised? could you have marginalised? could she have marginalised? could we have marginalised? could you have marginalised? could they have marginalised?
V-ing perfect
could I have been marginalising? could you have been marginalising? could she have been marginalising? could we have been marginalising? could you have been marginalising? could they have been marginalising?
Interro-negative form
Simple form
couldn't I marginalise? couldn't you marginalise? couldn't she marginalise? couldn't we marginalise? couldn't you marginalise? couldn't they marginalise?
V-ing form
couldn't I be marginalising? couldn't you be marginalising? couldn't she be marginalising? couldn't we be marginalising? couldn't you be marginalising? couldn't they be marginalising?
Perfect
couldn't I have marginalised? couldn't you have marginalised? couldn't she have marginalised? couldn't we have marginalised? couldn't you have marginalised? couldn't they have marginalised?
V-ing perfect
couldn't I have been marginalising? couldn't you have been marginalising? couldn't she have been marginalising? couldn't we have been marginalising? couldn't you have been marginalising? couldn't they have been marginalising?