should lack
Verbe régulier : lack - lacked- lacked
Traduction française : manquer de 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should lack
you should lack
she should lack
we should lack
you should lack
they should lack 	I should be lacking
you should be lacking
she should be lacking
we should be lacking
you should be lacking
they should be lacking	I should have lacked
you should have lacked
she should have lacked
we should have lacked
you should have lacked
they should have lacked	I should have been lacking
you should have been lacking
she should have been lacking
we should have been lacking
you should have been lacking
they should have been lacking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should not lack
you should not lack
she should not lack
we should not lack
you should not lack
they should not lack 	I should not be lacking
you should not be lacking
she should not be lacking
we should not be lacking
you should not be lacking
they should not be lacking	I should not have lacked
you should not have lacked
she should not have lacked
we should not have lacked
you should not have lacked
they should not have lacked	I should not have been lacking
you should not have been lacking
she should not have been lacking
we should not have been lacking
you should not have been lacking
they should not have been lacking	

Forme interrogative 	
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should I lack?
should you lack?
should she lack?
should we lack?
should you lack?
should they lack? 	should I be lacking?
should you be lacking?
should she be lacking?
should we be lacking?
should you be lacking?
should they be lacking? 	should I have lacked?
should you have lacked?
should she have lacked?
should we have lacked?
should you have lacked?
should they have lacked? 	should I have been lacking?
should you have been lacking?
should she have been lacking?
should we have been lacking?
should you have been lacking?
should they have been lacking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I not lack?
should you not lack?
should she not lack?
should we not lack?
should you not lack?
should they not lack? 	should I not be lacking?
should you not be lacking?
should she not be lacking?
should we not be lacking?
should you not be lacking?
should they not be lacking? 	should I not have lacked?
should you not have lacked?
should she not have lacked?
should we not have lacked?
should you not have lacked?
should they not have lacked? 	should I not have been lacking?
should you not have been lacking?
should she not have been lacking?
should we not have been lacking?
should you not have been lacking?
should they not have been lacking?