should preplan
Verbe régulier : preplan - preplaned- preplaned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should preplan
you should preplan
he should preplan
we should preplan
you should preplan
they should preplan 	I should be preplaning
you should be preplaning
he should be preplaning
we should be preplaning
you should be preplaning
they should be preplaning	I should have preplaned
you should have preplaned
he should have preplaned
we should have preplaned
you should have preplaned
they should have preplaned	I should have been preplaning
you should have been preplaning
he should have been preplaning
we should have been preplaning
you should have been preplaning
they should have been preplaning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I should not preplan
you should not preplan
he should not preplan
we should not preplan
you should not preplan
they should not preplan 	I should not be preplaning
you should not be preplaning
he should not be preplaning
we should not be preplaning
you should not be preplaning
they should not be preplaning	I should not have preplaned
you should not have preplaned
he should not have preplaned
we should not have preplaned
you should not have preplaned
they should not have preplaned	I should not have been preplaning
you should not have been preplaning
he should not have been preplaning
we should not have been preplaning
you should not have been preplaning
they should not have been preplaning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I preplan?
should you preplan?
should he preplan?
should we preplan?
should you preplan?
should they preplan? 	should I be preplaning?
should you be preplaning?
should he be preplaning?
should we be preplaning?
should you be preplaning?
should they be preplaning? 	should I have preplaned?
should you have preplaned?
should he have preplaned?
should we have preplaned?
should you have preplaned?
should they have preplaned? 	should I have been preplaning?
should you have been preplaning?
should he have been preplaning?
should we have been preplaning?
should you have been preplaning?
should they have been preplaning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I not preplan?
should you not preplan?
should he not preplan?
should we not preplan?
should you not preplan?
should they not preplan? 	should I not be preplaning?
should you not be preplaning?
should he not be preplaning?
should we not be preplaning?
should you not be preplaning?
should they not be preplaning? 	should I not have preplaned?
should you not have preplaned?
should he not have preplaned?
should we not have preplaned?
should you not have preplaned?
should they not have preplaned? 	should I not have been preplaning?
should you not have been preplaning?
should he not have been preplaning?
should we not have been preplaning?
should you not have been preplaning?
should they not have been preplaning?