I could cross-pollinate you could cross-pollinate he could cross-pollinate we could cross-pollinate you could cross-pollinate they could cross-pollinate
V-ing form
I could be cross-pollinating you could be cross-pollinating he could be cross-pollinating we could be cross-pollinating you could be cross-pollinating they could be cross-pollinating
Perfect
I could have cross-pollinated you could have cross-pollinated he could have cross-pollinated we could have cross-pollinated you could have cross-pollinated they could have cross-pollinated
V-ing perfect
I could have been cross-pollinating you could have been cross-pollinating he could have been cross-pollinating we could have been cross-pollinating you could have been cross-pollinating they could have been cross-pollinating
Negation
Simple form
I could not cross-pollinate you could not cross-pollinate he could not cross-pollinate we could not cross-pollinate you could not cross-pollinate they could not cross-pollinate
V-ing form
I could not be cross-pollinating you could not be cross-pollinating he could not be cross-pollinating we could not be cross-pollinating you could not be cross-pollinating they could not be cross-pollinating
Perfect
I could not have cross-pollinated you could not have cross-pollinated he could not have cross-pollinated we could not have cross-pollinated you could not have cross-pollinated they could not have cross-pollinated
V-ing perfect
I could not have been cross-pollinating you could not have been cross-pollinating he could not have been cross-pollinating we could not have been cross-pollinating you could not have been cross-pollinating they could not have been cross-pollinating
Interrogative form
Simple form
could I cross-pollinate? could you cross-pollinate? could he cross-pollinate? could we cross-pollinate? could you cross-pollinate? could they cross-pollinate?
V-ing form
could I be cross-pollinating? could you be cross-pollinating? could he be cross-pollinating? could we be cross-pollinating? could you be cross-pollinating? could they be cross-pollinating?
Perfect
could I have cross-pollinated? could you have cross-pollinated? could he have cross-pollinated? could we have cross-pollinated? could you have cross-pollinated? could they have cross-pollinated?
V-ing perfect
could I have been cross-pollinating? could you have been cross-pollinating? could he have been cross-pollinating? could we have been cross-pollinating? could you have been cross-pollinating? could they have been cross-pollinating?
Interro-negative form
Simple form
could I not cross-pollinate? could you not cross-pollinate? could he not cross-pollinate? could we not cross-pollinate? could you not cross-pollinate? could they not cross-pollinate?
V-ing form
could I not be cross-pollinating? could you not be cross-pollinating? could he not be cross-pollinating? could we not be cross-pollinating? could you not be cross-pollinating? could they not be cross-pollinating?
Perfect
could I not have cross-pollinated? could you not have cross-pollinated? could he not have cross-pollinated? could we not have cross-pollinated? could you not have cross-pollinated? could they not have cross-pollinated?
V-ing perfect
could I not have been cross-pollinating? could you not have been cross-pollinating? could he not have been cross-pollinating? could we not have been cross-pollinating? could you not have been cross-pollinating? could they not have been cross-pollinating?