could rubber-stamp
Regular verb: rubber-stamp - rubber-stamped- rubber-stamped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could rubber-stamp
you could rubber-stamp
he could rubber-stamp
we could rubber-stamp
you could rubber-stamp
they could rubber-stamp 	I could be rubber-stamping
you could be rubber-stamping
he could be rubber-stamping
we could be rubber-stamping
you could be rubber-stamping
they could be rubber-stamping	I could have rubber-stamped
you could have rubber-stamped
he could have rubber-stamped
we could have rubber-stamped
you could have rubber-stamped
they could have rubber-stamped	I could have been rubber-stamping
you could have been rubber-stamping
he could have been rubber-stamping
we could have been rubber-stamping
you could have been rubber-stamping
they could have been rubber-stamping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't rubber-stamp
you couldn't rubber-stamp
he couldn't rubber-stamp
we couldn't rubber-stamp
you couldn't rubber-stamp
they couldn't rubber-stamp 	I couldn't be rubber-stamping
you couldn't be rubber-stamping
he couldn't be rubber-stamping
we couldn't be rubber-stamping
you couldn't be rubber-stamping
they couldn't be rubber-stamping	I couldn't have rubber-stamped
you couldn't have rubber-stamped
he couldn't have rubber-stamped
we couldn't have rubber-stamped
you couldn't have rubber-stamped
they couldn't have rubber-stamped	I couldn't have been rubber-stamping
you couldn't have been rubber-stamping
he couldn't have been rubber-stamping
we couldn't have been rubber-stamping
you couldn't have been rubber-stamping
they couldn't have been rubber-stamping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I rubber-stamp?
could you rubber-stamp?
could he rubber-stamp?
could we rubber-stamp?
could you rubber-stamp?
could they rubber-stamp? 	could I be rubber-stamping?
could you be rubber-stamping?
could he be rubber-stamping?
could we be rubber-stamping?
could you be rubber-stamping?
could they be rubber-stamping? 	could I have rubber-stamped?
could you have rubber-stamped?
could he have rubber-stamped?
could we have rubber-stamped?
could you have rubber-stamped?
could they have rubber-stamped? 	could I have been rubber-stamping?
could you have been rubber-stamping?
could he have been rubber-stamping?
could we have been rubber-stamping?
could you have been rubber-stamping?
could they have been rubber-stamping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I rubber-stamp?
couldn't you rubber-stamp?
couldn't he rubber-stamp?
couldn't we rubber-stamp?
couldn't you rubber-stamp?
couldn't they rubber-stamp? 	couldn't I be rubber-stamping?
couldn't you be rubber-stamping?
couldn't he be rubber-stamping?
couldn't we be rubber-stamping?
couldn't you be rubber-stamping?
couldn't they be rubber-stamping? 	couldn't I have rubber-stamped?
couldn't you have rubber-stamped?
couldn't he have rubber-stamped?
couldn't we have rubber-stamped?
couldn't you have rubber-stamped?
couldn't they have rubber-stamped? 	couldn't I have been rubber-stamping?
couldn't you have been rubber-stamping?
couldn't he have been rubber-stamping?
couldn't we have been rubber-stamping?
couldn't you have been rubber-stamping?
couldn't they have been rubber-stamping?