should thumbtack
Verbo regular: thumbtack - thumbtacked- thumbtacked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should thumbtack
you should thumbtack
she should thumbtack
we should thumbtack
you should thumbtack
they should thumbtack 	I should be thumbtacking
you should be thumbtacking
she should be thumbtacking
we should be thumbtacking
you should be thumbtacking
they should be thumbtacking	I should have thumbtacked
you should have thumbtacked
she should have thumbtacked
we should have thumbtacked
you should have thumbtacked
they should have thumbtacked	I should have been thumbtacking
you should have been thumbtacking
she should have been thumbtacking
we should have been thumbtacking
you should have been thumbtacking
they should have been thumbtacking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not thumbtack
you should not thumbtack
she should not thumbtack
we should not thumbtack
you should not thumbtack
they should not thumbtack 	I should not be thumbtacking
you should not be thumbtacking
she should not be thumbtacking
we should not be thumbtacking
you should not be thumbtacking
they should not be thumbtacking	I should not have thumbtacked
you should not have thumbtacked
she should not have thumbtacked
we should not have thumbtacked
you should not have thumbtacked
they should not have thumbtacked	I should not have been thumbtacking
you should not have been thumbtacking
she should not have been thumbtacking
we should not have been thumbtacking
you should not have been thumbtacking
they should not have been thumbtacking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I thumbtack?
should you thumbtack?
should she thumbtack?
should we thumbtack?
should you thumbtack?
should they thumbtack? 	should I be thumbtacking?
should you be thumbtacking?
should she be thumbtacking?
should we be thumbtacking?
should you be thumbtacking?
should they be thumbtacking? 	should I have thumbtacked?
should you have thumbtacked?
should she have thumbtacked?
should we have thumbtacked?
should you have thumbtacked?
should they have thumbtacked? 	should I have been thumbtacking?
should you have been thumbtacking?
should she have been thumbtacking?
should we have been thumbtacking?
should you have been thumbtacking?
should they have been thumbtacking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not thumbtack?
should you not thumbtack?
should she not thumbtack?
should we not thumbtack?
should you not thumbtack?
should they not thumbtack? 	should I not be thumbtacking?
should you not be thumbtacking?
should she not be thumbtacking?
should we not be thumbtacking?
should you not be thumbtacking?
should they not be thumbtacking? 	should I not have thumbtacked?
should you not have thumbtacked?
should she not have thumbtacked?
should we not have thumbtacked?
should you not have thumbtacked?
should they not have thumbtacked? 	should I not have been thumbtacking?
should you not have been thumbtacking?
should she not have been thumbtacking?
should we not have been thumbtacking?
should you not have been thumbtacking?
should they not have been thumbtacking?