English verb conjugation
SHOULD RETREAD

Regular verb: retread - retreaded - retreaded

Affirmation

Simple form	V-ing form
I should retread you should retread she should retread we should retread you should retread they should retread	I should be retreading you should be retreading she should be retreading we should be retreading you should be retreading they should be retreading
Perfect	V-ing perfect
I should have retreaded you should have retreaded she should have retreaded we should have retreaded you should have retreaded they should have retreaded	I should have been retreading you should have been retreading she should have been retreading we should have been retreading you should have been retreading they should have been retreading

Negation

Simple form	V-ing form
I should not retread you should not retread she should not retread we should not retread you should not retread they should not retread	I should not be retreading you should not be retreading she should not be retreading we should not be retreading you should not be retreading they should not be retreading
Perfect	V-ing perfect
I should not have retreaded you should not have retreaded she should not have retreaded we should not have retreaded you should not have retreaded they should not have retreaded	I should not have been retreading you should not have been retreading she should not have been retreading we should not have been retreading you should not have been retreading they should not have been retreading

Interrogative form

Simple form	V-ing form
should I retread? should you retread? should she retread? should we retread? should you retread? should they retread?	should I be retreading? should you be retreading? should she be retreading? should we be retreading? should you be retreading? should they be retreading?
Perfect	V-ing perfect
should I have retreaded? should you have retreaded? should she have retreaded? should we have retreaded? should you have retreaded? should they have retreaded?	should I have been retreading? should you have been retreading? should she have been retreading? should we have been retreading? should you have been retreading? should they have been retreading?

Interro-negative form

Simple form	V-ing form
should I not retread? should you not retread? should she not retread? should we not retread? should you not retread? should they not retread?	should I not be retreading? should you not be retreading? should she not be retreading? should we not be retreading? should you not be retreading? should they not be retreading?
Perfect	V-ing perfect
should I not have retreaded? should you not have retreaded? should she not have retreaded? should we not have retreaded? should you not have retreaded? should they not have retreaded?	should I not have been retreading? should you not have been retreading? should she not have been retreading? should we not have been retreading? should you not have been retreading? should they not have been retreading?