I could rightsise you could rightsise he could rightsise we could rightsise you could rightsise they could rightsise
V-ing form
I could be rightsising you could be rightsising he could be rightsising we could be rightsising you could be rightsising they could be rightsising
Perfect
I could have rightsised you could have rightsised he could have rightsised we could have rightsised you could have rightsised they could have rightsised
V-ing perfect
I could have been rightsising you could have been rightsising he could have been rightsising we could have been rightsising you could have been rightsising they could have been rightsising
Negation
Simple form
I could not rightsise you could not rightsise he could not rightsise we could not rightsise you could not rightsise they could not rightsise
V-ing form
I could not be rightsising you could not be rightsising he could not be rightsising we could not be rightsising you could not be rightsising they could not be rightsising
Perfect
I could not have rightsised you could not have rightsised he could not have rightsised we could not have rightsised you could not have rightsised they could not have rightsised
V-ing perfect
I could not have been rightsising you could not have been rightsising he could not have been rightsising we could not have been rightsising you could not have been rightsising they could not have been rightsising
Interrogative form
Simple form
could I rightsise? could you rightsise? could he rightsise? could we rightsise? could you rightsise? could they rightsise?
V-ing form
could I be rightsising? could you be rightsising? could he be rightsising? could we be rightsising? could you be rightsising? could they be rightsising?
Perfect
could I have rightsised? could you have rightsised? could he have rightsised? could we have rightsised? could you have rightsised? could they have rightsised?
V-ing perfect
could I have been rightsising? could you have been rightsising? could he have been rightsising? could we have been rightsising? could you have been rightsising? could they have been rightsising?
Interro-negative form
Simple form
could I not rightsise? could you not rightsise? could he not rightsise? could we not rightsise? could you not rightsise? could they not rightsise?
V-ing form
could I not be rightsising? could you not be rightsising? could he not be rightsising? could we not be rightsising? could you not be rightsising? could they not be rightsising?
Perfect
could I not have rightsised? could you not have rightsised? could he not have rightsised? could we not have rightsised? could you not have rightsised? could they not have rightsised?
V-ing perfect
could I not have been rightsising? could you not have been rightsising? could he not have been rightsising? could we not have been rightsising? could you not have been rightsising? could they not have been rightsising?