science

Imperativus pro infinitivo

Imperativus pro infinitivo is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Imperativus pro infinitivo rather than just read about it. In short: Imperativus pro infinitivo is a syntactic feature in which a verbal form superficially resembling the imperative mood is realized, instead of the expected infinitive. The imperativus pro infinitivo is a feature of, for example, the Frisian languages.

Key takeaways

Imperativus pro infinitivo belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Imperativus pro infinitivo to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Imperativus pro infinitivo from memory before moving on to harder problems.

Reference excerpt

Imperativus pro infinitivo is a syntactic feature in which a verbal form superficially resembling the imperative mood is realized, instead of the expected infinitive. The imperativus pro infinitivo is a feature of, for example, the Frisian languages.

North Frisian (Mooring): Ik häi änjörsne niinj lust än mååg seelew wat tu ääsen klåår. Sater Frisian: Ik hiede jêrsene neen lûst on moakje selwen wet to iten kloar. West Frisian: Ik hie juster gjin nocht en meitsje sels wat te iten klear. The sentences read in English: 'Yesterday I did not feel like making dinner myself'.

References

Further reading Hoekema, Teake B. (1971). "Sentences with imperativus pro infinitivo". Us Wurk. 20 (1–4): 61–74. Retrieved 30 July 2024. Hoekema, Teake B. (1975). "Sentences with imperativus pro infinitivo II". Us Wurk. 24 (1–4): 35–48. Retrieved 30 July 2024. van der Meer, Geart (1975). "The imperativus pro infinitivo reconsidered". Us Wurk. 24 (1–4): 19–34. Retrieved 30 July 2024. van der Meer, Geart (1989). "The so-called imperativus pro infinitivo (IPI) in West Frisian: On the interplay of syntax, semantics and morphology". NOWELE. 13: 49–85. doi:10.1075/nowele.13.06mee. Retrieved 30 July 2024.

Worked examples

Example 1 — a first encounter with Imperativus pro infinitivo

Start with the simplest possible case. Write down what Imperativus pro infinitivo claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Imperativus pro infinitivo before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Imperativus pro infinitivo ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Imperativus pro infinitivo

In research: Imperativus pro infinitivo appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Imperativus pro infinitivo in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Imperativus pro infinitivo is common in secondary-school and first-year university syllabi. It links to neighbouring topics Syntax, Syntax stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Imperativus pro infinitivo outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Imperativus pro infinitivo in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Imperativus pro infinitivo means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Imperativus pro infinitivo out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Imperativus pro infinitivo in simple terms?

Why does Imperativus pro infinitivo matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Imperativus pro infinitivo?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Imperativus pro infinitivo.