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Lesson 15.1A2

Modal Verbs in the Perfekt: The Double Infinitive

இறந்த காலத்தில் இயலுமை வினைச்சொற்கள் — இரட்டை முடிவிலி

Putting a modal verb like müssen or können into the Perfekt tense breaks the pattern you just learned — instead of a normal participle, German uses a second infinitive, stacking two 'bare' verb forms at the very end of the sentence.

Grammar Comparison

இலக்கண ஒப்பீடு

Two infinitives at the end instead of one participle

German

Ich habe gehen müssen. (I have had to go — NOT 'Ich habe gehen gemusst')

Tamil

நான் போக வேண்டியிருந்தது. (a single layered verb form carries both 'go' and 'had to')

Every other Perfekt sentence from the last lesson ends in one past participle: gegessen, gemacht, gesehen. The moment a modal verb (müssen, können, wollen, dürfen, sollen) is involved, German swaps its usual participle (gemusst) for a second plain infinitive instead, so the sentence ends in two infinitives back to back: gehen müssen, not gehen gemusst. Tamil doesn't split this into two separate verb slots at all — a single layered verb form (வேண்டியிருந்தது) already carries both the action and the obligation together. Treat this as a memorizable exception to the Perfekt pattern rather than trying to derive it from the normal participle rule.

Vocabulary

சொற்கள்

GermanPronunciationTamilEnglish
Ich habe gehen müssen.ikh HAH-beh GAY-en MUES-enநான் போக வேண்டியிருந்தது.nān pōga vēṇḍiyirundhadhu.I had to go.
Ich habe nicht kommen können.ikh HAH-beh nikht KOM-en KERN-enஎன்னால் வர முடியவில்லை.eṉṉāl vara muḍiyavillai.I wasn't able to come.
Wir haben warten müssen.veer HAH-ben VAHR-ten MUES-enநாங்கள் காத்திருக்க வேண்டியிருந்தது.nāngaḷ kāththirukka vēṇḍiyirundhadhu.We had to wait.
Er hat das nicht sagen wollen.air haht dahs nikht ZAH-gen VOL-enஅவன் அதைச் சொல்ல விரும்பவில்லை.avan adhaich solla virumbavillai.He didn't want to say that.