Infinitive Constructions
Explicação
How do you say "I'm learning German in order to travel"? That's um...zu. But "I'm saving money so that my daughter can study"? That's damit — because the subjects are different. This topic clears up exactly that distinction.
The Three Main Constructions
Core rule: When both verbs share the same subject, use um...zu / ohne...zu / anstatt...zu. When the subjects differ, use damit / ohne dass / anstatt dass.
| Construction | Meaning | Condition |
|---|---|---|
| um...zu | in order to | same subject |
| ohne...zu | without (doing) | same subject |
| anstatt...zu | instead of (doing) | same subject |
| damit | so that | different subjects |
"Ich lerne Deutsch, um in Berlin arbeiten zu können."
(I'm learning German in order to work in Berlin.) — same subject: I learn / I work → um...zu ✓
"Er ging aus dem Zimmer, ohne ein Wort zu sagen."
(He left the room without saying a word.) — the most dramatic scene in every German film.
"Anstatt zu lernen, hat sie den ganzen Tag Netflix geschaut."
(Instead of studying, she watched Netflix all day.) — anstatt zu: verb follows directly.
"Ich spare Geld, damit meine Tochter studieren kann."
(I'm saving money so that my daughter can study.) — different subjects → damit ✓
Separable Verbs: Watch the "zu"
With separable verbs, "zu" goes BETWEEN the prefix and the stem — as one word.
| Base infinitive | With "zu" | ❌ Wrong |
|---|---|---|
| aufstehen | aufzustehen | zu aufstehen |
| anrufen | anzurufen | zu anrufen |
| fernsehen | fernzusehen | zu fernsehen |
"Er versucht früher aufzustehen — ohne Erfolg."
(He tries to get up earlier — without success.) aufzustehen: auf + zu + stehen, all one word.
⚠️ COMMON MISTAKES
❌ "Ich lerne Deutsch, um reisen."
✓ "Ich lerne Deutsch, um zu reisen."
The "zu" is mandatory. In Portuguese/English, "to" does double duty; in German, "um" signals purpose and "zu" signals the infinitive — both are needed.
❌ "Er versucht, zu aufstehen."
✓ "Er versucht aufzustehen."
With separable verbs, zu inserts itself between prefix and stem: auf-zu-stehen.
❌ "Ich spare, um meine Tochter studieren kann."
✓ "Ich spare, damit meine Tochter studieren kann."
um...zu requires the same subject. Different subjects → damit + full clause.
🧠 REMEMBER: Same subject → zu. Different subjects → damit.
Separable verbs: zu is the "filling" — aufzustehen, anzurufen.
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