Präteritum of Strong Verbs (Ablaut) | German Grammar

Strong verbs form their Präteritum (simple past) not by adding a -te- ending the way weak verbs do, but by changing the stem vowel — a process called ablaut. Once you have the strong past stem memorised (and there is no way around memorising it), the rest of the paradigm is built with a small, regular set of endings. This page shows you exactly how that works, and reveals the one structural fact that makes the whole table easy.

The core insight: ich = er, and both are bare

The single most important thing to understand about the strong Präteritum is this: the ich form and the er/sie/es form are identical, and both are simply the bare past stem with no ending at all.

The verb gehen (to go) has the past stem ging. That bare stem is the ich form and is the er form:

ich ging (I went)
er ging (he went)

This mirrors the present tense, where ich and er differ (ich gehe / er geht), but in the Präteritum they collapse back into one shape. English does something similar: "I went" and "he went" are identical. So your instinct from English is correct here — do not add anything to the ich or er form.

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Memorise just the bare past stem (ging, kam, sah, fuhr). That single form is already your ich and er form, and every other form is built from it with a regular ending.

The strong ending set

To the bare stem you add these endings for the remaining persons:

Person	Ending	gehen → ging
ich	— (none)	ich ging
du	-st	du gingst
er/sie/es	— (none)	er ging
wir	-en	wir gingen
ihr	-t	ihr gingt
sie/Sie	-en	sie gingen

Notice these are almost the present-tense endings minus the -e of the ich form and minus the -t of the er form. The zero ending on ich and er is the signature of the strong (and mixed) Präteritum, and it is what distinguishes it from the weak Präteritum, where ich and er end in -te (ich machte, er machte).

Ich ging gestern früh ins Bett, weil ich todmüde war.

I went to bed early yesterday because I was dead tired. (informal narration)

Du gingst doch gar nicht zur Party — wo warst du?

You didn't go to the party at all — where were you? (informal)

Wir gingen jeden Sommer ans Meer.

We went to the seaside every summer. (neutral, written or spoken)

High-frequency strong past stems

These eight verbs cover a huge proportion of everyday strong-verb usage. Learn the bare stem in the middle column and the entire paradigm follows automatically.

Infinitive	Past stem (ich/er)	Meaning	Participle
gehen	ging	to go	gegangen
kommen	kam	to come	gekommen
sehen	sah	to see	gesehen
geben	gab	to give	gegeben
nehmen	nahm	to take	genommen
fahren	fuhr	to drive/go	gefahren
finden	fand	to find	gefunden
sprechen	sprach	to speak	gesprochen

The vowel change is not random — it falls into a handful of recurring patterns (the ablaut series), which is why sprechen → sprach and nehmen → nahm both land on -a-, and why fahren → fuhr and tragen → trug both land on -u-. Once you have seen the ablaut series, you can often predict an unfamiliar verb's past stem from its present-tense vowel.

Sie kam zu spät, weil die Bahn Verspätung hatte.

She arrived too late because the train was delayed. (neutral)

Ich sah ihn zum letzten Mal vor zehn Jahren.

I saw him for the last time ten years ago. (neutral)

Er gab mir das Buch zurück, ohne ein Wort zu sagen.

He gave me the book back without saying a word. (neutral)

A short narrative

The Präteritum is the natural tense of written narration — novels, fairy tales, news reports, and biographies all run on it. Strong verbs dominate such texts, so this is the register where mastery pays off:

Es war einmal ein König, der drei Töchter hatte. Eines Tages kam ein Fremder ins Schloss, sprach mit dem König und nahm Platz an der langen Tafel.

Once upon a time there was a king who had three daughters. One day a stranger came to the castle, spoke with the king, and took a seat at the long table. (literary / fairy-tale register)

Here kam, sprach and nahm are all bare strong past stems used as er forms — no ending added.

Why "ich = er" trips up English speakers less than you'd think

In English, regular verbs distinguish person almost nowhere in the past ("I walked / he walked"), so the idea that ich and er share a form feels familiar. The trap is different: English has no equivalent of the vowel-change-only strategy combined with zero endings. German learners coming from English tend to "fix" the bare er form by adding -t (because the present tense has -t), producing the impossible er kamt. Resist that instinct: the strong Präteritum er form is always bare.

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If you ever write er + a strong past stem + -t (er gingt, er kamt, er saht), stop — that is an error every time in the indicative. The bare stem is the er form.

Common mistakes

❌ Ich gehte gestern ins Kino.

Incorrect — regularising a strong verb with the weak -te ending.

✅ Ich ging gestern ins Kino.

I went to the cinema yesterday. (correct strong past stem)

❌ Er kamt erst um Mitternacht nach Hause.

Incorrect — adding a present-tense -t to the bare er form.

✅ Er kam erst um Mitternacht nach Hause.

He didn't get home until midnight. (er = bare stem)

❌ Ich ginge zur Schule.

Incorrect for a plain past — ginge with -e is Konjunktiv II ('would go'), not the indicative past.

✅ Ich ging zur Schule.

I went to school. (indicative past, zero ending)

❌ Wir sehten den Film schon.

Incorrect — sehen is strong; the weak -te ending does not apply.

✅ Wir sahen den Film schon.

We already saw the film. (sah + -en)

❌ Du sprachtest zu leise.

Incorrect — du takes only -st on the bare stem, not -test.

✅ Du sprachst zu leise.

You spoke too quietly. (sprach + -st)

Key takeaways

The strong Präteritum changes the stem vowel (ablaut); it never adds -te-.
The bare past stem is both the ich and the er/sie/es form — no ending at all.
Build the rest with -st (du), -en (wir), -t (ihr), -en (sie/Sie).
The strong stem must be memorised per verb, but the vowel changes cluster into predictable ablaut classes.
Adding -e to the ich/er form (ginge, käme) creates Konjunktiv II, not the indicative past.

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