Deber Conjugation Practice
Deber expresses obligation and advice: debes descansar (you must rest), deberías llamarla (you should call her). With de it becomes a guess: debe de estar en casa (he must be at home). It also means to owe money. Every form is regular, and the conditional debería is the polite way to give advice.
Fully regular in every tense, conjugated like comer; as a modal verb it has no everyday commands, so that tense is left out.
Present
yo deboWhat happens now and in general
14 exercises →Preterite
yo debíCompleted past actions
14 exercises →Imperfect
yo debíaPast background, habits, descriptions
14 exercises →Future
yo deberéWhat will happen
14 exercises →Conditional
yo deberíaWhat would happen
14 exercises →Present Perfect
yo he debidoWhat has happened, with haber + participle
14 exercises →Present Subjunctive
yo debaAfter wish, doubt, and emotion
14 exercises →Download the deber conjugation worksheet (PDF) — free, with answer key
42 exercises on deber across 7 tenses on one printable worksheet: each tense opens with its conjugation table, and the answer key with short explanations is at the end. Fits A4 and US Letter. Free for classroom use — no sign-up.