should thumbtack
Verbe régulier : thumbtack - thumbtacked- thumbtacked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I'd thumbtack
you'd thumbtack
she'd thumbtack
we'd thumbtack
you'd thumbtack
they'd thumbtack 	I'd be thumbtacking
you'd be thumbtacking
she'd be thumbtacking
we'd be thumbtacking
you'd be thumbtacking
they'd be thumbtacking	I should've thumbtacked
you should've thumbtacked
she should've thumbtacked
we should've thumbtacked
you should've thumbtacked
they should've thumbtacked	I should've been thumbtacking
you should've been thumbtacking
she should've been thumbtacking
we should've been thumbtacking
you should've been thumbtacking
they should've been thumbtacking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I shouldn't thumbtack
you shouldn't thumbtack
she shouldn't thumbtack
we shouldn't thumbtack
you shouldn't thumbtack
they shouldn't thumbtack 	I shouldn't be thumbtacking
you shouldn't be thumbtacking
she shouldn't be thumbtacking
we shouldn't be thumbtacking
you shouldn't be thumbtacking
they shouldn't be thumbtacking	I shouldn't have thumbtacked
you shouldn't have thumbtacked
she shouldn't have thumbtacked
we shouldn't have thumbtacked
you shouldn't have thumbtacked
they shouldn't have thumbtacked	I shouldn't have been thumbtacking
you shouldn't have been thumbtacking
she shouldn't have been thumbtacking
we shouldn't have been thumbtacking
you shouldn't have been thumbtacking
they shouldn't have been thumbtacking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
shouldn't I thumbtack?
shouldn't you thumbtack?
shouldn't she thumbtack?
shouldn't we thumbtack?
shouldn't you thumbtack?
shouldn't they thumbtack? 	shouldn't I be thumbtacking?
shouldn't you be thumbtacking?
shouldn't she be thumbtacking?
shouldn't we be thumbtacking?
shouldn't you be thumbtacking?
shouldn't they be thumbtacking? 	shouldn't I have thumbtacked?
shouldn't you have thumbtacked?
shouldn't she have thumbtacked?
shouldn't we have thumbtacked?
shouldn't you have thumbtacked?
shouldn't they have thumbtacked? 	shouldn't I have been thumbtacking?
shouldn't you have been thumbtacking?
shouldn't she have been thumbtacking?
shouldn't we have been thumbtacking?
shouldn't you have been thumbtacking?
shouldn't they have been thumbtacking?