could radiate
Regular verb: radiate - radiated- radiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could radiate
you could radiate
he could radiate
we could radiate
you could radiate
they could radiate 	I could be radiating
you could be radiating
he could be radiating
we could be radiating
you could be radiating
they could be radiating	I could have radiated
you could have radiated
he could have radiated
we could have radiated
you could have radiated
they could have radiated	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 	V-ing form 	Perfect 	V-ing perfect 	
I could not radiate
you could not radiate
he could not radiate
we could not radiate
you could not radiate
they could not radiate 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
could I radiate?
could you radiate?
could he radiate?
could we radiate?
could you radiate?
could they radiate? 	could I be radiating?
could you be radiating?
could he be radiating?
could we be radiating?
could you be radiating?
could they be radiating? 	could I have radiated?
could you have radiated?
could he have radiated?
could we have radiated?
could you have radiated?
could they have radiated? 	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 	V-ing form 	Perfect 	V-ing perfect 	
could I not radiate?
could you not radiate?
could he not radiate?
could we not radiate?
could you not radiate?
could they not radiate? 	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? 	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? 	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?