could idle
Regular verb: idle - idled- idled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could idle
you could idle
she could idle
we could idle
you could idle
they could idle 	I could be idling
you could be idling
she could be idling
we could be idling
you could be idling
they could be idling	I could have idled
you could have idled
she could have idled
we could have idled
you could have idled
they could have idled	I could have been idling
you could have been idling
she could have been idling
we could have been idling
you could have been idling
they could have been idling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not idle
you could not idle
she could not idle
we could not idle
you could not idle
they could not idle 	I could not be idling
you could not be idling
she could not be idling
we could not be idling
you could not be idling
they could not be idling	I could not have idled
you could not have idled
she could not have idled
we could not have idled
you could not have idled
they could not have idled	I could not have been idling
you could not have been idling
she could not have been idling
we could not have been idling
you could not have been idling
they could not have been idling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I idle?
could you idle?
could she idle?
could we idle?
could you idle?
could they idle? 	could I be idling?
could you be idling?
could she be idling?
could we be idling?
could you be idling?
could they be idling? 	could I have idled?
could you have idled?
could she have idled?
could we have idled?
could you have idled?
could they have idled? 	could I have been idling?
could you have been idling?
could she have been idling?
could we have been idling?
could you have been idling?
could they have been idling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not idle?
could you not idle?
could she not idle?
could we not idle?
could you not idle?
could they not idle? 	could I not be idling?
could you not be idling?
could she not be idling?
could we not be idling?
could you not be idling?
could they not be idling? 	could I not have idled?
could you not have idled?
could she not have idled?
could we not have idled?
could you not have idled?
could they not have idled? 	could I not have been idling?
could you not have been idling?
could she not have been idling?
could we not have been idling?
could you not have been idling?
could they not have been idling?