Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I should prevent prevent you should prevent prevent he should prevent prevent we should prevent prevent you should prevent prevent they should prevent prevent
V-ing form
I should be prevent preventing you should be prevent preventing he should be prevent preventing we should be prevent preventing you should be prevent preventing they should be prevent preventing
Perfect
I should have prevent prevented you should have prevent prevented he should have prevent prevented we should have prevent prevented you should have prevent prevented they should have prevent prevented
V-ing perfect
I should have been prevent preventing you should have been prevent preventing he should have been prevent preventing we should have been prevent preventing you should have been prevent preventing they should have been prevent preventing
Negation
Simple form
I should not prevent prevent you should not prevent prevent he should not prevent prevent we should not prevent prevent you should not prevent prevent they should not prevent prevent
V-ing form
I should not be prevent preventing you should not be prevent preventing he should not be prevent preventing we should not be prevent preventing you should not be prevent preventing they should not be prevent preventing
Perfect
I should not have prevent prevented you should not have prevent prevented he should not have prevent prevented we should not have prevent prevented you should not have prevent prevented they should not have prevent prevented
V-ing perfect
I should not have been prevent preventing you should not have been prevent preventing he should not have been prevent preventing we should not have been prevent preventing you should not have been prevent preventing they should not have been prevent preventing
Interrogative form
Simple form
should I prevent prevent? should you prevent prevent? should he prevent prevent? should we prevent prevent? should you prevent prevent? should they prevent prevent?
V-ing form
should I be prevent preventing? should you be prevent preventing? should he be prevent preventing? should we be prevent preventing? should you be prevent preventing? should they be prevent preventing?
Perfect
should I have prevent prevented? should you have prevent prevented? should he have prevent prevented? should we have prevent prevented? should you have prevent prevented? should they have prevent prevented?
V-ing perfect
should I have been prevent preventing? should you have been prevent preventing? should he have been prevent preventing? should we have been prevent preventing? should you have been prevent preventing? should they have been prevent preventing?
Interro-negative form
Simple form
should I not prevent prevent? should you not prevent prevent? should he not prevent prevent? should we not prevent prevent? should you not prevent prevent? should they not prevent prevent?
V-ing form
should I not be prevent preventing? should you not be prevent preventing? should he not be prevent preventing? should we not be prevent preventing? should you not be prevent preventing? should they not be prevent preventing?
Perfect
should I not have prevent prevented? should you not have prevent prevented? should he not have prevent prevented? should we not have prevent prevented? should you not have prevent prevented? should they not have prevent prevented?
V-ing perfect
should I not have been prevent preventing? should you not have been prevent preventing? should he not have been prevent preventing? should we not have been prevent preventing? should you not have been prevent preventing? should they not have been prevent preventing?