I could germinate you could germinate he could germinate we could germinate you could germinate they could germinate
V-ing form
I could be germinating you could be germinating he could be germinating we could be germinating you could be germinating they could be germinating
Perfect
I could have germinated you could have germinated he could have germinated we could have germinated you could have germinated they could have germinated
V-ing perfect
I could have been germinating you could have been germinating he could have been germinating we could have been germinating you could have been germinating they could have been germinating
Negation
Simple form
I could not germinate you could not germinate he could not germinate we could not germinate you could not germinate they could not germinate
V-ing form
I could not be germinating you could not be germinating he could not be germinating we could not be germinating you could not be germinating they could not be germinating
Perfect
I could not have germinated you could not have germinated he could not have germinated we could not have germinated you could not have germinated they could not have germinated
V-ing perfect
I could not have been germinating you could not have been germinating he could not have been germinating we could not have been germinating you could not have been germinating they could not have been germinating
Interrogative form
Simple form
could I germinate? could you germinate? could he germinate? could we germinate? could you germinate? could they germinate?
V-ing form
could I be germinating? could you be germinating? could he be germinating? could we be germinating? could you be germinating? could they be germinating?
Perfect
could I have germinated? could you have germinated? could he have germinated? could we have germinated? could you have germinated? could they have germinated?
V-ing perfect
could I have been germinating? could you have been germinating? could he have been germinating? could we have been germinating? could you have been germinating? could they have been germinating?
Interro-negative form
Simple form
could I not germinate? could you not germinate? could he not germinate? could we not germinate? could you not germinate? could they not germinate?
V-ing form
could I not be germinating? could you not be germinating? could he not be germinating? could we not be germinating? could you not be germinating? could they not be germinating?
Perfect
could I not have germinated? could you not have germinated? could he not have germinated? could we not have germinated? could you not have germinated? could they not have germinated?
V-ing perfect
could I not have been germinating? could you not have been germinating? could he not have been germinating? could we not have been germinating? could you not have been germinating? could they not have been germinating?