English verb conjugation
SHOULD PREOBTAIN

Regular verb: preobtain - preobtained - preobtained

Affirmation

Simple form	V-ing form
I should preobtain you should preobtain he should preobtain we should preobtain you should preobtain they should preobtain	I should be preobtaining you should be preobtaining he should be preobtaining we should be preobtaining you should be preobtaining they should be preobtaining
Perfect	V-ing perfect
I should have preobtained you should have preobtained he should have preobtained we should have preobtained you should have preobtained they should have preobtained	I should have been preobtaining you should have been preobtaining he should have been preobtaining we should have been preobtaining you should have been preobtaining they should have been preobtaining

Negation

Simple form	V-ing form
I should not preobtain you should not preobtain he should not preobtain we should not preobtain you should not preobtain they should not preobtain	I should not be preobtaining you should not be preobtaining he should not be preobtaining we should not be preobtaining you should not be preobtaining they should not be preobtaining
Perfect	V-ing perfect
I should not have preobtained you should not have preobtained he should not have preobtained we should not have preobtained you should not have preobtained they should not have preobtained	I should not have been preobtaining you should not have been preobtaining he should not have been preobtaining we should not have been preobtaining you should not have been preobtaining they should not have been preobtaining

Interrogative form

Simple form	V-ing form
should I preobtain? should you preobtain? should he preobtain? should we preobtain? should you preobtain? should they preobtain?	should I be preobtaining? should you be preobtaining? should he be preobtaining? should we be preobtaining? should you be preobtaining? should they be preobtaining?
Perfect	V-ing perfect
should I have preobtained? should you have preobtained? should he have preobtained? should we have preobtained? should you have preobtained? should they have preobtained?	should I have been preobtaining? should you have been preobtaining? should he have been preobtaining? should we have been preobtaining? should you have been preobtaining? should they have been preobtaining?

Interro-negative form

Simple form	V-ing form
should I not preobtain? should you not preobtain? should he not preobtain? should we not preobtain? should you not preobtain? should they not preobtain?	should I not be preobtaining? should you not be preobtaining? should he not be preobtaining? should we not be preobtaining? should you not be preobtaining? should they not be preobtaining?
Perfect	V-ing perfect
should I not have preobtained? should you not have preobtained? should he not have preobtained? should we not have preobtained? should you not have preobtained? should they not have preobtained?	should I not have been preobtaining? should you not have been preobtaining? should he not have been preobtaining? should we not have been preobtaining? should you not have been preobtaining? should they not have been preobtaining?