should presharpen
Regular verb: presharpen - presharpened- presharpened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should presharpen
you should presharpen
she should presharpen
we should presharpen
you should presharpen
they should presharpen 	I should be presharpening
you should be presharpening
she should be presharpening
we should be presharpening
you should be presharpening
they should be presharpening	I should have presharpened
you should have presharpened
she should have presharpened
we should have presharpened
you should have presharpened
they should have presharpened	I should have been presharpening
you should have been presharpening
she should have been presharpening
we should have been presharpening
you should have been presharpening
they should have been presharpening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not presharpen
you should not presharpen
she should not presharpen
we should not presharpen
you should not presharpen
they should not presharpen 	I should not be presharpening
you should not be presharpening
she should not be presharpening
we should not be presharpening
you should not be presharpening
they should not be presharpening	I should not have presharpened
you should not have presharpened
she should not have presharpened
we should not have presharpened
you should not have presharpened
they should not have presharpened	I should not have been presharpening
you should not have been presharpening
she should not have been presharpening
we should not have been presharpening
you should not have been presharpening
they should not have been presharpening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I presharpen?
should you presharpen?
should she presharpen?
should we presharpen?
should you presharpen?
should they presharpen? 	should I be presharpening?
should you be presharpening?
should she be presharpening?
should we be presharpening?
should you be presharpening?
should they be presharpening? 	should I have presharpened?
should you have presharpened?
should she have presharpened?
should we have presharpened?
should you have presharpened?
should they have presharpened? 	should I have been presharpening?
should you have been presharpening?
should she have been presharpening?
should we have been presharpening?
should you have been presharpening?
should they have been presharpening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not presharpen?
should you not presharpen?
should she not presharpen?
should we not presharpen?
should you not presharpen?
should they not presharpen? 	should I not be presharpening?
should you not be presharpening?
should she not be presharpening?
should we not be presharpening?
should you not be presharpening?
should they not be presharpening? 	should I not have presharpened?
should you not have presharpened?
should she not have presharpened?
should we not have presharpened?
should you not have presharpened?
should they not have presharpened? 	should I not have been presharpening?
should you not have been presharpening?
should she not have been presharpening?
should we not have been presharpening?
should you not have been presharpening?
should they not have been presharpening?