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Learning German grammar – TENSES
Past Tense / Preterite

In English we often call the preterite, the “simple past” tense. This could be because one can form sentences in the past tense, simply by giving the verb a special preterite-ending. Sadly, it’s not quite as simple as that because there are different types of verbs, which are governed by different rules when forming a sentence in the preterite tense.

In the following section I will explain the preterite to you as well as I can from my perspective as a German teacher.

The Formation of the past tense with regular / weak verbs

As I mentioned above, the formation of a sentence in the preterite tense is not always simple and it all depends on which type of verb we are using.

Basically, there are

The most simple formation of the preterite is when using regular verbs. The basic rule for these is: Present-tense stem + t + Personal ending.

Let’s briefly remind ourselves of the following statement, which I mentioned on the sheet about the present tense:

learn German grammar infinitive

If you want to form the past tense, you must simply replace the infinitive ending with the personal ending and add a “t” before it. The following table shows a clever learning method:

learn German grammar tenses preterite

In order to understand the learning aid of “este enten”, please watch my video about personal verb endings in the present tense. The learning method is exactly the same.

Please make sure you remember that the letter “e” in the second person singular and plural is not a part of the past tense endings. This “e” is used so that we can pronounce the word more clearly.

The Formation of the Past Tense
with irregular/ strong verbs

The formation of sentences in the preterite tense with irregular/ strong verbs is even more “simple” because you don’t have to add a “t” to the verb. The rule therefore goes: Infinitive stem + Preterite ending of the irregular verbs. The preterite endings of irregular verbs are almost identical to the regular verbs. The only difference is that in the first and third person singular, there is NO ending.
In the table below it is more clear:

learn German grammar tenses preterite

As you can see, irregular verbs do not need a “t” in the middle and in the first and third person there is no ending at all. Everything appears to be much more simple than when you form sentences in the past tense with regular verbs. However, if you were looking closely, you would have noticed that the vowel in the verb stem has changed. In this example “fahr-” becomes “fuhr-”. The biggest problem here is that every irregular verb has different vowel changes. For some irregular verbs, you must even change the vowel in the present tense when using it in the second and third person singular. For example with the strong verb “lesen” (to read): Ich lese, du liest, er/sie/es liest, wir lesen, ihr lest, sie/Sie lesen. In the following video I explain everything once again and show you a great memory aid for the past tense endings of regular and irregular verbs. Please watch this video.- You’ll be amazed!



As I have mentioned, the system of vowel changes is very complicated and one should perhaps not exactly think of it as a “system”. In my eBook „Learn German Grammar With Mnemonics“ I explain this phenomenon in detail and I have even developed helpful study-methods for around 120 strong verbs; you shouldn’t really need more than this. For this reason I ask you to understand that I can’t go any deeper here, as such a broad topic can’t be fully explained in such a small space.

The Formation of the Past Tense with Mixed Verbs

Mixed verbs are a cross between strong and weak verbs. This means that the vowel in the stem of these words change in different ways like a strong verb, but the past tense ending is just the same as with the weak verbs, that is “t” + weak verb preterite ending. Here is an example of the mixed verb “kennen” (to (get to) know).

learn German grammar tenses mixed verbs

As you can see, in the preterite this verb has the properties of the regular AND irregular verbs.

Luckily, there are not many of these mixed verbs. The most important are:

the modal verbs, brennen (to burn), kennen (to know), denken (to think), rennen (to run), wissen (to know), bringen (to bring) and probably a few others that I’ve forgotten!

The Formation of the Preterite with Modal Verbs

You may have noticed that modal verbs were included in the mixed verbs section. However, the vowel change that happens with modal verbs is very simple. In the preterite you simply take away the umlaut. Then – just like all the other mixed verbs – you add a “t” and the personal ending of the weak verbs to the end. Here are a few examples of how you form the preterite with modal verbs:

  • können, ich konn-t-e (I could/was able to)
  • müssen, ich muss-t-e (I had to)
  • dürfen, ich durf-t-e (allowed I was to)

The Formation of the Preterite with the verb “sein” (to be)

Due to its historical development the verb “sein” (to be) is said to be special. The exact historical background of the verb is perhaps not important for your progress in German but I will give you some background information so that you can understand this crazy phenomenon a little bit better. In the middle ages there was a different verb that had roughly the same meaning as “sein”. This verb was “wesen”. This original verb is part of the New High German verb “verwesen” (to rot).

In any case it has developed that the stem of “wesen” is used for the formation of “to be” in the preterite in German. Therefore, the preterite form of “sein” bares no resemblance to the present tense form of “sein”.

To summarize:

The preterite form of “sein” is derived from the verb “wes|en”. The vowel, “e” changes to “a” and the “s” become an “r”. The verb is conjugated just like the strong verbs.

learn German grammar preterite sein

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