I could radiate you could radiate he could radiate we could radiate you could radiate they could radiate
V-ing form
I could be radiating you could be radiating he could be radiating we could be radiating you could be radiating they could be radiating
Perfect
I could have radiated you could have radiated he could have radiated we could have radiated you could have radiated they could have radiated
V-ing perfect
I could have been radiating you could have been radiating he could have been radiating we could have been radiating you could have been radiating they could have been radiating
Negation
Simple form
I could not radiate you could not radiate he could not radiate we could not radiate you could not radiate they could not radiate
V-ing form
I could not be radiating you could not be radiating he could not be radiating we could not be radiating you could not be radiating they could not be radiating
Perfect
I could not have radiated you could not have radiated he could not have radiated we could not have radiated you could not have radiated they could not have radiated
V-ing perfect
I could not have been radiating you could not have been radiating he could not have been radiating we could not have been radiating you could not have been radiating they could not have been radiating
Interrogative form
Simple form
could I radiate? could you radiate? could he radiate? could we radiate? could you radiate? could they radiate?
V-ing form
could I be radiating? could you be radiating? could he be radiating? could we be radiating? could you be radiating? could they be radiating?
Perfect
could I have radiated? could you have radiated? could he have radiated? could we have radiated? could you have radiated? could they have radiated?
V-ing perfect
could I have been radiating? could you have been radiating? could he have been radiating? could we have been radiating? could you have been radiating? could they have been radiating?
Interro-negative form
Simple form
could I not radiate? could you not radiate? could he not radiate? could we not radiate? could you not radiate? could they not radiate?
V-ing form
could I not be radiating? could you not be radiating? could he not be radiating? could we not be radiating? could you not be radiating? could they not be radiating?
Perfect
could I not have radiated? could you not have radiated? could he not have radiated? could we not have radiated? could you not have radiated? could they not have radiated?
V-ing perfect
could I not have been radiating? could you not have been radiating? could he not have been radiating? could we not have been radiating? could you not have been radiating? could they not have been radiating?