could holster
Regular verb: holster - holstered- holstered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could holster
you could holster
he could holster
we could holster
you could holster
they could holster 	I could be holstering
you could be holstering
he could be holstering
we could be holstering
you could be holstering
they could be holstering	I could have holstered
you could have holstered
he could have holstered
we could have holstered
you could have holstered
they could have holstered	I could have been holstering
you could have been holstering
he could have been holstering
we could have been holstering
you could have been holstering
they could have been holstering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not holster
you could not holster
he could not holster
we could not holster
you could not holster
they could not holster 	I could not be holstering
you could not be holstering
he could not be holstering
we could not be holstering
you could not be holstering
they could not be holstering	I could not have holstered
you could not have holstered
he could not have holstered
we could not have holstered
you could not have holstered
they could not have holstered	I could not have been holstering
you could not have been holstering
he could not have been holstering
we could not have been holstering
you could not have been holstering
they could not have been holstering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I holster?
could you holster?
could he holster?
could we holster?
could you holster?
could they holster? 	could I be holstering?
could you be holstering?
could he be holstering?
could we be holstering?
could you be holstering?
could they be holstering? 	could I have holstered?
could you have holstered?
could he have holstered?
could we have holstered?
could you have holstered?
could they have holstered? 	could I have been holstering?
could you have been holstering?
could he have been holstering?
could we have been holstering?
could you have been holstering?
could they have been holstering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not holster?
could you not holster?
could he not holster?
could we not holster?
could you not holster?
could they not holster? 	could I not be holstering?
could you not be holstering?
could he not be holstering?
could we not be holstering?
could you not be holstering?
could they not be holstering? 	could I not have holstered?
could you not have holstered?
could he not have holstered?
could we not have holstered?
could you not have holstered?
could they not have holstered? 	could I not have been holstering?
could you not have been holstering?
could he not have been holstering?
could we not have been holstering?
could you not have been holstering?
could they not have been holstering?