I could mainstream you could mainstream he could mainstream we could mainstream you could mainstream they could mainstream
V-ing form
I could be mainstreaming you could be mainstreaming he could be mainstreaming we could be mainstreaming you could be mainstreaming they could be mainstreaming
Perfect
I could have mainstreamed you could have mainstreamed he could have mainstreamed we could have mainstreamed you could have mainstreamed they could have mainstreamed
V-ing perfect
I could have been mainstreaming you could have been mainstreaming he could have been mainstreaming we could have been mainstreaming you could have been mainstreaming they could have been mainstreaming
Negation
Simple form
I could not mainstream you could not mainstream he could not mainstream we could not mainstream you could not mainstream they could not mainstream
V-ing form
I could not be mainstreaming you could not be mainstreaming he could not be mainstreaming we could not be mainstreaming you could not be mainstreaming they could not be mainstreaming
Perfect
I could not have mainstreamed you could not have mainstreamed he could not have mainstreamed we could not have mainstreamed you could not have mainstreamed they could not have mainstreamed
V-ing perfect
I could not have been mainstreaming you could not have been mainstreaming he could not have been mainstreaming we could not have been mainstreaming you could not have been mainstreaming they could not have been mainstreaming
Interrogative form
Simple form
could I mainstream? could you mainstream? could he mainstream? could we mainstream? could you mainstream? could they mainstream?
V-ing form
could I be mainstreaming? could you be mainstreaming? could he be mainstreaming? could we be mainstreaming? could you be mainstreaming? could they be mainstreaming?
Perfect
could I have mainstreamed? could you have mainstreamed? could he have mainstreamed? could we have mainstreamed? could you have mainstreamed? could they have mainstreamed?
V-ing perfect
could I have been mainstreaming? could you have been mainstreaming? could he have been mainstreaming? could we have been mainstreaming? could you have been mainstreaming? could they have been mainstreaming?
Interro-negative form
Simple form
could I not mainstream? could you not mainstream? could he not mainstream? could we not mainstream? could you not mainstream? could they not mainstream?
V-ing form
could I not be mainstreaming? could you not be mainstreaming? could he not be mainstreaming? could we not be mainstreaming? could you not be mainstreaming? could they not be mainstreaming?
Perfect
could I not have mainstreamed? could you not have mainstreamed? could he not have mainstreamed? could we not have mainstreamed? could you not have mainstreamed? could they not have mainstreamed?
V-ing perfect
could I not have been mainstreaming? could you not have been mainstreaming? could he not have been mainstreaming? could we not have been mainstreaming? could you not have been mainstreaming? could they not have been mainstreaming?