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