should scan
Regular verb: scan - scanned- scanned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should scan
you should scan
she should scan
we should scan
you should scan
they should scan 	I should be scanning
you should be scanning
she should be scanning
we should be scanning
you should be scanning
they should be scanning	I should have scanned
you should have scanned
she should have scanned
we should have scanned
you should have scanned
they should have scanned	I should have been scanning
you should have been scanning
she should have been scanning
we should have been scanning
you should have been scanning
they should have been scanning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not scan
you should not scan
she should not scan
we should not scan
you should not scan
they should not scan 	I should not be scanning
you should not be scanning
she should not be scanning
we should not be scanning
you should not be scanning
they should not be scanning	I should not have scanned
you should not have scanned
she should not have scanned
we should not have scanned
you should not have scanned
they should not have scanned	I should not have been scanning
you should not have been scanning
she should not have been scanning
we should not have been scanning
you should not have been scanning
they should not have been scanning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I scan?
should you scan?
should she scan?
should we scan?
should you scan?
should they scan? 	should I be scanning?
should you be scanning?
should she be scanning?
should we be scanning?
should you be scanning?
should they be scanning? 	should I have scanned?
should you have scanned?
should she have scanned?
should we have scanned?
should you have scanned?
should they have scanned? 	should I have been scanning?
should you have been scanning?
should she have been scanning?
should we have been scanning?
should you have been scanning?
should they have been scanning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not scan?
should you not scan?
should she not scan?
should we not scan?
should you not scan?
should they not scan? 	should I not be scanning?
should you not be scanning?
should she not be scanning?
should we not be scanning?
should you not be scanning?
should they not be scanning? 	should I not have scanned?
should you not have scanned?
should she not have scanned?
should we not have scanned?
should you not have scanned?
should they not have scanned? 	should I not have been scanning?
should you not have been scanning?
should she not have been scanning?
should we not have been scanning?
should you not have been scanning?
should they not have been scanning?