German reference
zweifeln
to doubt
Regular · 13 form tables
Includes indicative, subjunctive I and II, and imperative forms. Separable verbs retain their word order in each form.
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Indicative
Present
| Person, form or usage | Form and meaning |
|---|---|
| ich | I doubt |
| du | you doubt |
| er/sie/es | he/she/it doubts |
| wir | we doubt |
| ihr | you (plural) doubt |
| sie/Sie | they doubt; you (formal) doubt |
Simple past
| Person, form or usage | Form and meaning |
|---|---|
| ich | I doubted |
| du | you doubted |
| er/sie/es | he/she/it doubted |
| wir | we doubted |
| ihr | you (plural) doubted |
| sie/Sie | they doubted; you (formal) doubted |
Compound past
| Person, form or usage | Form and meaning |
|---|---|
| ich | I doubted; I have doubted |
| du | you doubted; you have doubted |
| er/sie/es | he/she/it doubted; he/she/it has doubted |
| wir | we doubted; we have doubted |
| ihr | you (plural) doubted; you (plural) have doubted |
| sie/Sie | they doubted; they have doubted; you (formal) doubted; you (formal) have doubted |
Past perfect
| Person, form or usage | Form and meaning |
|---|---|
| ich | I had doubted |
| du | you had doubted |
| er/sie/es | he/she/it had doubted |
| wir | we had doubted |
| ihr | you (plural) had doubted |
| sie/Sie | they had doubted; you (formal) had doubted |
Future
| Person, form or usage | Form and meaning |
|---|---|
| ich | I will doubt |
| du | you will doubt |
| er/sie/es | he/she/it will doubt |
| wir | we will doubt |
| ihr | you (plural) will doubt |
| sie/Sie | they will doubt; you (formal) will doubt |
Future perfect
| Person, form or usage | Form and meaning |
|---|---|
| ich | I will have doubted |
| du | you will have doubted |
| er/sie/es | he/she/it will have doubted |
| wir | we will have doubted |
| ihr | you (plural) will have doubted |
| sie/Sie | they will have doubted; you (formal) will have doubted |
Subjunctive
Subjunctive I
| Person, form or usage | Form and meaning |
|---|---|
| ich | (that) I doubt |
| du | (that) you doubt |
| er/sie/es | (that) he/she/it doubts |
| wir | (that) we doubt |
| ihr | (that) you (plural) doubt |
| sie/Sie | (that) they doubt; (that) you (formal) doubt |
Subjunctive II
| Person, form or usage | Form and meaning |
|---|---|
| ich | I would doubt |
| du | you would doubt |
| er/sie/es | he/she/it would doubt |
| wir | we would doubt |
| ihr | you (plural) would doubt |
| sie/Sie | they would doubt; you (formal) would doubt |
Past subjunctive II
| Person, form or usage | Form and meaning |
|---|---|
| ich | I would have doubted |
| du | you would have doubted |
| er/sie/es | he/she/it would have doubted |
| wir | we would have doubted |
| ihr | you (plural) would have doubted |
| sie/Sie | they would have doubted; you (formal) would have doubted |
Would form
| Person, form or usage | Form and meaning |
|---|---|
| ich | I would doubt |
| du | you would doubt |
| er/sie/es | he/she/it would doubt |
| wir | we would doubt |
| ihr | you (plural) would doubt |
| sie/Sie | they would doubt; you (formal) would doubt |
Past subjunctive I
| Person, form or usage | Form and meaning |
|---|---|
| ich | (reportedly) I have doubted |
| du | (reportedly) you have doubted |
| er/sie/es | (reportedly) he/she/it has doubted |
| wir | (reportedly) we have doubted |
| ihr | (reportedly) you (plural) have doubted |
| sie/Sie | (reportedly) they have doubted; (reportedly) you (formal) have doubted |
Future subjunctive I
| Person, form or usage | Form and meaning |
|---|---|
| ich | (reportedly) I will doubt |
| du | (reportedly) you will doubt |
| er/sie/es | (reportedly) he/she/it will doubt |
| wir | (reportedly) we will doubt |
| ihr | (reportedly) you (plural) will doubt |
| sie/Sie | (reportedly) they will doubt; (reportedly) you (formal) will doubt |
Imperative
Imperative
| Person, form or usage | Form and meaning |
|---|---|
| du | doubt! |
| ihr | doubt! (plural) |
| sie/Sie | doubt! (formal) |
Additional forms
- Infinitive with zu
- Present participle
- Past participle
- Past infinitive
Forms from the Loquus reference. Only supplied forms are shown. Browse all German entries.