could irradiate
Regular verb: irradiate - irradiated- irradiated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could irradiate
you could irradiate
he could irradiate
we could irradiate
you could irradiate
they could irradiate 	I could be irradiating
you could be irradiating
he could be irradiating
we could be irradiating
you could be irradiating
they could be irradiating	I could have irradiated
you could have irradiated
he could have irradiated
we could have irradiated
you could have irradiated
they could have irradiated	I could have been irradiating
you could have been irradiating
he could have been irradiating
we could have been irradiating
you could have been irradiating
they could have been irradiating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't irradiate
you couldn't irradiate
he couldn't irradiate
we couldn't irradiate
you couldn't irradiate
they couldn't irradiate 	I couldn't be irradiating
you couldn't be irradiating
he couldn't be irradiating
we couldn't be irradiating
you couldn't be irradiating
they couldn't be irradiating	I couldn't have irradiated
you couldn't have irradiated
he couldn't have irradiated
we couldn't have irradiated
you couldn't have irradiated
they couldn't have irradiated	I couldn't have been irradiating
you couldn't have been irradiating
he couldn't have been irradiating
we couldn't have been irradiating
you couldn't have been irradiating
they couldn't have been irradiating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I irradiate?
could you irradiate?
could he irradiate?
could we irradiate?
could you irradiate?
could they irradiate? 	could I be irradiating?
could you be irradiating?
could he be irradiating?
could we be irradiating?
could you be irradiating?
could they be irradiating? 	could I have irradiated?
could you have irradiated?
could he have irradiated?
could we have irradiated?
could you have irradiated?
could they have irradiated? 	could I have been irradiating?
could you have been irradiating?
could he have been irradiating?
could we have been irradiating?
could you have been irradiating?
could they have been irradiating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I irradiate?
couldn't you irradiate?
couldn't he irradiate?
couldn't we irradiate?
couldn't you irradiate?
couldn't they irradiate? 	couldn't I be irradiating?
couldn't you be irradiating?
couldn't he be irradiating?
couldn't we be irradiating?
couldn't you be irradiating?
couldn't they be irradiating? 	couldn't I have irradiated?
couldn't you have irradiated?
couldn't he have irradiated?
couldn't we have irradiated?
couldn't you have irradiated?
couldn't they have irradiated? 	couldn't I have been irradiating?
couldn't you have been irradiating?
couldn't he have been irradiating?
couldn't we have been irradiating?
couldn't you have been irradiating?
couldn't they have been irradiating?