should first-foot
Regular verb: first-foot - first-footed- first-footed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should first-foot
you should first-foot
he should first-foot
we should first-foot
you should first-foot
they should first-foot 	I should be first-footing
you should be first-footing
he should be first-footing
we should be first-footing
you should be first-footing
they should be first-footing	I should have first-footed
you should have first-footed
he should have first-footed
we should have first-footed
you should have first-footed
they should have first-footed	I should have been first-footing
you should have been first-footing
he should have been first-footing
we should have been first-footing
you should have been first-footing
they should have been first-footing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not first-foot
you should not first-foot
he should not first-foot
we should not first-foot
you should not first-foot
they should not first-foot 	I should not be first-footing
you should not be first-footing
he should not be first-footing
we should not be first-footing
you should not be first-footing
they should not be first-footing	I should not have first-footed
you should not have first-footed
he should not have first-footed
we should not have first-footed
you should not have first-footed
they should not have first-footed	I should not have been first-footing
you should not have been first-footing
he should not have been first-footing
we should not have been first-footing
you should not have been first-footing
they should not have been first-footing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I first-foot?
should you first-foot?
should he first-foot?
should we first-foot?
should you first-foot?
should they first-foot? 	should I be first-footing?
should you be first-footing?
should he be first-footing?
should we be first-footing?
should you be first-footing?
should they be first-footing? 	should I have first-footed?
should you have first-footed?
should he have first-footed?
should we have first-footed?
should you have first-footed?
should they have first-footed? 	should I have been first-footing?
should you have been first-footing?
should he have been first-footing?
should we have been first-footing?
should you have been first-footing?
should they have been first-footing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not first-foot?
should you not first-foot?
should he not first-foot?
should we not first-foot?
should you not first-foot?
should they not first-foot? 	should I not be first-footing?
should you not be first-footing?
should he not be first-footing?
should we not be first-footing?
should you not be first-footing?
should they not be first-footing? 	should I not have first-footed?
should you not have first-footed?
should he not have first-footed?
should we not have first-footed?
should you not have first-footed?
should they not have first-footed? 	should I not have been first-footing?
should you not have been first-footing?
should he not have been first-footing?
should we not have been first-footing?
should you not have been first-footing?
should they not have been first-footing?