Sooner or later every German learner meets a sentence that seems to have lost a piece: Ich rufe dich morgen an. Where did the verb go? It didn't go anywhere — you've just run into a separable verb. The infinitive is anrufen (to call), but in a normal main clause it splits in two: the verb part (rufe) stays in second position, and the prefix (an) jumps to the very end. Once you see the pattern, it stops being a trap and starts being a tool: German is the only major language where the sentence tells you "wait for it" until the last word.
What a separable verb actually is
A separable verb is a base verb with a prefix glued to the front. The prefix usually adds a direction or changes the meaning, and in the infinitive the two are written as one word:
- stehen — to stand → aufstehen — to get up
- kommen — to come → ankommen — to arrive
- kaufen — to buy → einkaufen — to shop
In a simple main clause the verb conjugates as usual and the prefix is sent to the end:
The split rule: conjugated verb in position 2, prefix at the very end of the clause.
- Ich stehe um sieben auf. — I get up at seven.
- Der Zug kommt um acht an. — The train arrives at eight.
- Wir kaufen am Samstag ein. — We shop on Saturday.
The more words you put between the two halves, the more the prefix feels like it's "waiting": Ich rufe dich heute Abend nach der Arbeit an. It's still one verb — just stretched.
The prefixes worth knowing
You don't need to memorize hundreds of verbs one by one. A short list of prefixes covers most of the separable verbs you'll meet in everyday German:
| Prefix | Typical idea | Example verb |
|---|---|---|
| an- | at / start / contact | anrufen (to call), ankommen (to arrive) |
| auf- | up / open | aufstehen (to get up), aufmachen (to open) |
| aus- | out / off | aussteigen (to get off), ausgehen (to go out) |
| ein- | in | einkaufen (to shop), einladen (to invite) |
| mit- | along / with | mitkommen (to come along), mitbringen (to bring along) |
| ab- | away / off | abholen (to pick up), abfahren (to depart) |
| zu- | closed / toward | zumachen (to close), zuhören (to listen) |
| zurück- | back | zurückkommen (to come back) |
| fern- | far / distant | fernsehen (to watch TV) |
Notice how often the prefix really does what it says: auf means up, so aufstehen is "stand up"; mit means with, so mitkommen is "come with". That logic makes new verbs far easier to guess.
How the other tenses and forms behave
The split only happens when the verb is conjugated in a main clause. In every other situation the prefix stays attached or slots in at a predictable place.
| Situation | What happens | Example |
|---|---|---|
| Infinitive | one word | Ich will früh aufstehen. |
| Modal verb | modal in position 2, whole verb at the end | Ich muss um sieben aufstehen. |
| Subordinate clause | verb goes to the end and rejoins its prefix | Ich weiß, dass der Zug um acht ankommt. |
| Imperative | prefix last | Steh auf! Ruf mich an! |
| Perfect tense | ge- goes between prefix and participle | Ich habe dich angerufen. |
| zu + infinitive | zu goes between prefix and verb | Ich versuche, früh aufzustehen. |
Two of these deserve a closer look.
Perfect tense. The participle is built with ge- tucked in after the prefix, which is exactly why it looks so odd at first:
| Infinitive | Present (er/sie) | Perfect |
|---|---|---|
| anrufen | ruft an | hat angerufen |
| aufstehen | steht auf | ist aufgestanden |
| ankommen | kommt an | ist angekommen |
| einkaufen | kauft ein | hat eingekauft |
| anfangen | fängt an | hat angefangen |
| fernsehen | sieht fern | hat ferngesehen |
Verbs of movement or change of state (aufstehen, ankommen, aussteigen) take sein as the auxiliary, the rest take haben — the same split you'll see across German.
Modals and subordinate clauses. Because the verb pushes to the end in both, the prefix and the verb simply meet again: Kannst du mich später abholen? — Can you pick me up later? Here abholen is whole, and the modal does the conjugating.
Separable vs inseparable: the quick test
Some prefixes never separate. If a verb starts with one of these, it stays in one piece, in every tense:
- be-, ent-, er-, ge-, ver-, zer- (and emp-, miss-)
Compare ankommen (separable) with bekommen (inseparable):
- Der Zug kommt an. — The train arrives. → split
- Ich bekomme eine Mail. — I get an email. → no split
Inseparable verbs also skip the ge- in the participle: verstehen → verstanden, besuchen → besucht, bekommen → bekommen.
There is a second, very practical test — stress. In a separable verb the prefix is stressed: AN-kommen, AUF-stehen. In an inseparable verb the stress falls on the stem: be-KOM-men, ver-STE-hen. Say the infinitive out loud; if your voice lands on the prefix, it splits.
A small group of prefixes — durch-, über-, um-, unter-, wieder- — can go either way depending on the meaning. Take umfahren: Er fährt den Mast um (he knocks the pole down — separable) versus Er umfährt den Stau (he drives around the jam — inseparable). Learn these as individual pairs rather than as a rule.
How to make the pattern automatic
Rules get you through an exercise, but speaking needs the split to happen without a checklist. The most reliable fix is the same one that works for German noun genders and for the cases: learn the verb as a whole chunk, not as a rule. Don't memorize "anrufen — to call"; memorize "ruft an / hat angerufen — calls / called." That way the split and the participle come bundled with the vocabulary.
That's a perfect job for spaced repetition. Put the verb together with its present form and its participle on one card, review it on a schedule before the forgetting curve wins, and the sentence shape — verb second, prefix last — starts to sound right on its own. Mix in a quick round of the matching game or typing trainer with participles like angerufen and aufgestanden to lock in the middle ge-.
LexiNest's German course is free, works offline, and drills high-frequency words and verbs with spaced repetition from A1 to C2 — separable verbs included.
Frequently asked questions
Which German prefixes are always separable?
The common separable prefixes include ab-, an-, auf-, aus-, ein-, mit-, nach-, vor-, zu-, zurück-, weg- and fern-. They are stressed in speech, and they usually carry a clear meaning such as up, in, out or back.
Why does the prefix go to the end of the sentence?
It's a feature of German sentence structure: the conjugated verb must sit in position two, so the prefix has nowhere to go but the end — the so-called "sentence bracket". It gives German its characteristic "wait for the last word" rhythm, and it's the same bracket you see with modals (Ich muss gehen) and the perfect tense (Ich habe gegessen).
Do modal verbs split a separable verb?
No. With a modal the main verb stays in the infinitive at the end of the clause, so it's whole again: Ich muss heute früh aufstehen. Only the modal is conjugated.
How do I know if a verb is separable or inseparable?
Check the prefix. be-, ent-, er-, ge-, ver- and zer- never separate. Also check the stress: if the prefix is stressed (AN-rufen) it splits; if the stem is stressed (ver-STE-hen) it doesn't.
Is "ge-" really inserted inside the verb in the perfect?
Yes. For separable verbs, ge- goes between the prefix and the stem: auf + ge + standen → aufgestanden. Inseparable verbs skip it altogether: verstanden, besucht.