sicher sein — German conjugation

to be sure

Frequency#2618Irregular

Indicative

Present (Präsens) Irregular

Präsens is the default present for facts, habits, and near-future plans. German has no continuous aspect in the same way as English, so a single form often covers both “I work” and “I am working” when you add a time adverb or context.

Ich arbeite heute im Homeoffice.

PronounGermanEnglish
ichbin sicherI am sure
dubist sicheryou are sure
er/sie/esist sicherhe/she/it is sure
wirsind sicherwe are sure
ihrseid sicheryou (pl.) are sure
sie/Siesind sicherthey are sure

Simple past (Präteritum) Irregular

Präteritum is a narrative past, common in print and in northern speech, while southern speakers lean on the perfect in conversation. sein and haben keep their Präteritum even when you otherwise avoid the preterite.

Er war müde, aber er hatte keinen Kaffee mehr.

PronounGermanEnglish
ichwar sicherI was sure
duwarst sicheryou were sure
er/sie/eswar sicherhe/she/it was sure
wirwaren sicherwe were sure
ihrwart sicheryou (pl.) were sure
sie/Siewaren sicherthey were sure

Present perfect (Perfekt) Irregular

The Perfekt is the everyday past for finished events: auxiliary haben or sein plus participle, with sein for most motion, coming/going, and some change-of-state verbs.

Wir sind rechtzeitig angekommen und haben gefeiert.

PronounGermanEnglish
ichbin sicher gewesenI have been sure
dubist sicher gewesenyou have been sure
er/sie/esist sicher gewesenhe/she/it has been sure
wirsind sicher gewesenwe have been sure
ihrseid sicher gewesenyou (pl.) have been sure
sie/Siesind sicher gewesenthey have been sure

Pluperfect (Plusquamperfekt) Irregular

The Plusquamperfekt is the pluperfect: it marks what had already completed before a later past episode in the same narrative.

Sie war schon gegangen, bevor er ankam.

PronounGermanEnglish
ichwar sicher gewesenI had been sure
duwarst sicher gewesenyou had been sure
er/sie/eswar sicher gewesenhe/she/it had been sure
wirwaren sicher gewesenwe had been sure
ihrwart sicher gewesenyou (pl.) had been sure
sie/Siewaren sicher gewesenthey had been sure

Future I (Futur I) Irregular

Futur I is for predictions, firm promises, and also probability about the present in colloquial German. Everyday speech very often uses Präsens plus a time expression instead.

Morgen schneit es, sagt der Wetterbericht.

PronounGermanEnglish
ichwerde sicher seinI will be sure
duwirst sicher seinyou will be sure
er/sie/eswird sicher seinhe/she/it will be sure
wirwerden sicher seinwe will be sure
ihrwerdet sicher seinyou (pl.) will be sure
sie/Siewerden sicher seinthey will be sure

Future II (Futur II) Irregular

Futur II (werden + participle + haben/sein) names an action that will be completed before a later time, and can also express a guess that something must already have happened.

Bis Freitag werde ich alles gepackt haben.

PronounGermanEnglish
ichwerde sicher gewesen seinI will have been sure
duwirst sicher gewesen seinyou will have been sure
er/sie/eswird sicher gewesen seinhe/she/it will have been sure
wirwerden sicher gewesen seinwe will have been sure
ihrwerdet sicher gewesen seinyou (pl.) will have been sure
sie/Siewerden sicher gewesen seinthey will have been sure

Subjunctive

Subjunctive II (Konjunktiv II) Irregular

Konjunktiv II is the mood for politeness, contrary-to-fact if-clauses, and reported views. In speech, würde + infinitive often stands in for rarer preterit-based forms.

Könnten Sie mir bitte helfen?

PronounGerman
ichwäre sicher
duwärest sicher
er/sie/eswäre sicher
wirwären sicher
ihrwäret sicher
sie/Siewären sicher

Other forms

Imperative (Imperativ) Irregular

The imperative uses the du, ihr, and Sie forms of command; the informal du form drops the -st of the present for many strong verbs, and separable-prefix verbs place the prefix at the end.

Mach bitte schnell, der Zug fährt gleich ab.

PronounGerman
dusei sicher
ihrseit sicher