could write-protect
Regular verb: write-protect - write-protected- write-protected

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could write-protect
you could write-protect
he could write-protect
we could write-protect
you could write-protect
they could write-protect 	I could be write-protecting
you could be write-protecting
he could be write-protecting
we could be write-protecting
you could be write-protecting
they could be write-protecting	I could have write-protected
you could have write-protected
he could have write-protected
we could have write-protected
you could have write-protected
they could have write-protected	I could have been write-protecting
you could have been write-protecting
he could have been write-protecting
we could have been write-protecting
you could have been write-protecting
they could have been write-protecting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't write-protect
you couldn't write-protect
he couldn't write-protect
we couldn't write-protect
you couldn't write-protect
they couldn't write-protect 	I couldn't be write-protecting
you couldn't be write-protecting
he couldn't be write-protecting
we couldn't be write-protecting
you couldn't be write-protecting
they couldn't be write-protecting	I couldn't have write-protected
you couldn't have write-protected
he couldn't have write-protected
we couldn't have write-protected
you couldn't have write-protected
they couldn't have write-protected	I couldn't have been write-protecting
you couldn't have been write-protecting
he couldn't have been write-protecting
we couldn't have been write-protecting
you couldn't have been write-protecting
they couldn't have been write-protecting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I write-protect?
could you write-protect?
could he write-protect?
could we write-protect?
could you write-protect?
could they write-protect? 	could I be write-protecting?
could you be write-protecting?
could he be write-protecting?
could we be write-protecting?
could you be write-protecting?
could they be write-protecting? 	could I have write-protected?
could you have write-protected?
could he have write-protected?
could we have write-protected?
could you have write-protected?
could they have write-protected? 	could I have been write-protecting?
could you have been write-protecting?
could he have been write-protecting?
could we have been write-protecting?
could you have been write-protecting?
could they have been write-protecting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I write-protect?
couldn't you write-protect?
couldn't he write-protect?
couldn't we write-protect?
couldn't you write-protect?
couldn't they write-protect? 	couldn't I be write-protecting?
couldn't you be write-protecting?
couldn't he be write-protecting?
couldn't we be write-protecting?
couldn't you be write-protecting?
couldn't they be write-protecting? 	couldn't I have write-protected?
couldn't you have write-protected?
couldn't he have write-protected?
couldn't we have write-protected?
couldn't you have write-protected?
couldn't they have write-protected? 	couldn't I have been write-protecting?
couldn't you have been write-protecting?
couldn't he have been write-protecting?
couldn't we have been write-protecting?
couldn't you have been write-protecting?
couldn't they have been write-protecting?