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