All verbs also form their own subjunctive II form, which would be formed without the auxiliary verb "would". In the case of the regular verbs, however, the subjunctive II is identical with the indicative preterite, since these verbs can not form an umlaut. For this reason, in most verbs the subjunctive II is formed with the auxiliary verb. Only for a few verbs, one uses the own subjunctive form. The formation remains the same as in the verb "become