Verb conjugation is a method of changing verbs from their infinitive forms. The changes, usually done through endings and auxiliary words, express grammatical categories related to the action or state being described, such as person, number, tense, aspect and mode. Verbs are divided into a number of classes according to their form of conjugation and may be assigned model patterns to help to create the correct forms.
There are simple verb forms (e.g. ich mache, ich machte) and compound verb forms that use an auxiliary verb (e.g. ich habe gemacht, ich werde machen).
There are 6 tenses in German in total. Two of them are simple: the present simple (Präsens) and the past simple (Präteritum). The other four tenses are compound, i.e. they combine an auxiliary verb and the infinitive or the past participle form of the main verb carrying the meaning. The compound tenses include the future simple (Futur I), the present perfect (Perfekt), the past perfect (Plusquamperfekt) and the future perfect (Futur II).
... ...
More information
Present simple – Präsens
ich
klettere
du
kletterst
er/sie/es
klettert
wir
klettern
ihr
klettert
sie/Sie
klettern
Past simple – Präteritum
ich
kletterte
du
klettertest
er/sie/es
kletterte
wir
kletterten
ihr
klettertet
sie/Sie
kletterten
Present perfect – Perfekt
ich
bin geklettert
du
bist geklettert
er/sie/es
ist geklettert
wir
sind geklettert
ihr
seid geklettert
sie/Sie
sind geklettert
Past perfect – Plusquamperfekt
ich
war geklettert
du
warst geklettert
er/sie/es
war geklettert
wir
waren geklettert
ihr
wart geklettert
sie/Sie
waren geklettert
Future simple – Futur I
ich
werde klettern
du
wirst klettern
er/sie/es
wird klettern
wir
werden klettern
ihr
werdet klettern
sie/Sie
werden klettern
Future perfect – Futur II
ich
werde geklettert sein
du
wirst geklettert sein
er/sie/es
wird geklettert sein
wir
werden geklettert sein
ihr
werdet geklettert sein
sie/Sie
werden geklettert sein
Subjunctive of verb of the regular verb [klettern]
The subjunctive (from the late Latin modus coniunctivus, translated as a form of sentence structure, derived from the Latin verb coniungere – to join).
The subjunctive is a special verb form that usually expresses that the action is conditional or hypothetical.
It expresses possible, probable, hypothetical, desired, dreaded or necessary actions (thus indicating the speaker’s attitude toward the action). It is a form used to express something imagined that may never happen. In particular, it marks the utterance as subjective, doubtful or uncertain.
In German, there is the subjunctive I and the subjunctive II.
The subjunctive I includes the present subjunctive (e.g. er sei, er habe), the future subjunctive and the perfect subjunctive.
The subjunctive I usually expresses someone else’s opinion, often unlikely from the speaker’s point of view (present indicative: Er sagt, dass niemand zu Hause ist. – He says that no one is at home. X present subjunctive: Er sagt, dass niemand zu Hause sei. – He says that (supposedly) no one is at home.).
The subjunctive II includes the past subjunctive (er wäre, er hätte) and the past perfect subjunctive.
... ...
More information
Subjunctive I: Present – Konjunktiv I
ich
klettere
du
kletterst
er/sie/es
klettere
wir
klettern
ihr
klettert
sie/Sie
klettern
Subjunctive I: Present perfect – Konjunktiv I
ich
sei geklettert
du
seiest geklettert
er/sie/es
sei geklettert
wir
seien geklettert
ihr
seiet geklettert
sie/Sie
seien geklettert
Subjunctive I: Future simple – Konjunktiv I: Futur I
ich
werde klettern
du
werdest klettern
er/sie/es
werde klettern
wir
werden klettern
ihr
werdet klettern
sie/Sie
werden klettern
Subjunctive I: Future perfect - Konjuktiv I: Futur II
ich
werde geklettert sein
du
werdest geklettert sein
er/sie/es
werde geklettert sein
wir
werden geklettert sein
ihr
werdet geklettert sein
sie/Sie
werden geklettert sein
Subjunctive II: Past simple – Konjunktiv II: Präteritum
ich
kletterte
du
klettertest
er/sie/es
kletterte
wir
kletterten
ihr
klettertet
sie/Sie
kletterten
Subjunctive II: Past perfect – Konjunktiv II: Plusquamperfekt
ich
wäre geklettert
du
wärest geklettert
er/sie/es
wäre geklettert
wir
wären geklettert
ihr
wäret geklettert
sie/Sie
wären geklettert
Subjunctive II: Future simple – Konjunktiv II: Futur I
ich
würde klettern
du
würdest klettern
er/sie/es
würde klettern
wir
würden klettern
ihr
würdet klettern
sie/Sie
würden klettern
Subjunctive II: Future perfect – Konjunktiv II: Futur II
ich
würde geklettert sein
du
würdest geklettert sein
er/sie/es
würde geklettert sein
wir
würden geklettert sein
ihr
würdet geklettert sein
sie/Sie
würden geklettert sein
Imperativ verb ofof the regular verb [klettern]
The imperative (from the Latin imperativus) is a verb form that expresses a command, request or prohibition. In many cases, the use of the imperative can come across as rude and impolite. Therefore, a command is often expressed in a more polite way, using other grammatical means.
... ...
More information
Imperative – Imperativ
du
klettere
ihr
klettert
Participle forms of verb of the regular verb [klettern]
The participle form (from the Latin participare – ‘to take part’) is an indefinite form of a verb that can also be used in a number of ways:
to form compound verb tenses;
to form the passive voice;
as an adjective;
as an alternative to subordinate clauses (sentence condensers);
and others.
Participles can also be used as adjectives (participial adjectives), e.g. gekauft – gekauft(-e), verpasst – verpasst(-e), vergangen – vergangen(-e), as well as nouns (verbal nouns), e.g. griff – der Griff.