Double Infinitive (IPP)

Level 3

The Double Infinitive (IPP) occurs in the perfect tense when a verb like a modal (can, must, want) or a perception verb (see, hear) is followed by another verb. Instead of using a past participle (like 'gewild'), you use the infinitive ('willen').

How It Works

The Double Infinitive (Infinitivus Pro Participio) is a mandatory rule in Dutch syntax where an infinitive is used instead of a past participle. It triggers under specific conditions:

1. The Triggers
It is mandatory for:

It is standard for verbs of motion like gaan, komen, and blijven. Note: These motion verbs always use zijn as the auxiliary verb, even in the double infinitive construction (e.g., 'Ik ben gaan zwemmen').

It also applies to positional verbs like zitten, liggen, staan, hangen, and lopen. Note: When positional verbs trigger IPP, the word 'te' is dropped (e.g., 'Ik heb zitten werken').

For helpen, leren, and durven (to dare), the double infinitive is optional. However, if you choose to use the past participle instead of the infinitive, you must include te (e.g., 'Ik heb hem geholpen te verhuizen' vs. 'Ik heb hem helpen verhuizen').

2. The Transformation
In a standard perfect tense sentence like 'Ik heb het gewild', you use the participle. But if you add an action, 'I wanted to go,' the participle gewild becomes the infinitive willen: 'Ik heb willen gaan.'

3. Word Order in Subordinate Clauses
In subordinate clauses, the auxiliary verb (hebben/zijn) must come before the infinitive cluster.
Example: ...dat hij heeft kunnen komen (NOT: ...dat hij kunnen komen heeft).

Examples (5)

  1. Ik heb hem de hele middag horen zingen.

    I heard him singing all afternoon.

    Word by Word: I have him the whole afternoon hear sing.

    Because 'horen' is followed by 'zingen', it stays in the infinitive form instead of becoming 'gehoord'.

  2. Zij heeft gisteren niet kunnen komen.

    She wasn't able to come yesterday.

    Word by Word: She has yesterday not can come.

    The modal 'kunnen' triggers IPP because it is followed by the infinitive 'komen'.

  3. We zijn vorig jaar in Frankrijk gaan wonen.

    We went to live in France last year.

    Word by Word: We are last year in France go live.

    The verb 'gaan' uses 'zijn' as an auxiliary and triggers IPP when followed by another verb like 'wonen'.

  4. Ik heb de hele ochtend zitten lezen.

    I have been sitting reading all morning.

    Word by Word: I have the whole morning sit read.

    When using 'zitten te' in the perfect tense, the 'te' is dropped and 'zitten' becomes an infinitive.

  5. Hij heeft me helpen verhuizen.

    He helped me move.

    Word by Word: He has me help move.

    For 'helpen', the double infinitive is common, though 'geholpen te verhuizen' is also grammatically correct.

Common Mistakes

  • Using the past participle instead of the infinitive.

    Ik heb hem gezien lopen.
    Ik heb hem zien lopen.

    When 'zien' is followed by another verb in the perfect tense, you must use the infinitive 'zien', not the participle 'gezien'.

  • Incorrect word order in subordinate clauses.

    ...dat ik het doen willen heb.
    ...dat ik het heb willen doen.

    In a subclause with a double infinitive, the auxiliary verb (heb) must come before the infinitives.

  • Using the participle 'gezeten' instead of the infinitive 'zitten'.

    Ik heb de hele dag gezeten werken.
    Ik heb de hele dag zitten werken.

    In the perfect tense, 'zitten' before another verb takes the infinitive form (double infinitive): 'heb zitten werken'. 'Te' is optional: 'Ik heb de hele dag zitten te werken' is also correct.

How It Connects

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Double Infinitive (IPP)Level 3

Learn This First

To understand the double infinitive (Infinitivus pro Participio), you first need to be comfortable with the perfect tense (voltooid tegenwoordige tijd) and how modal verbs like 'kunnen' or 'moeten' behave. Since this pattern involves placing two or more infinitives at the end of a sentence, familiarity with Dutch verb clustering and word order is also necessary.

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Patterns that build on this one.