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PRACTICAL WRITING GUIDE · 3 of 30

Make every sentence easier to follow

3 minReviewed 2026-09-21

Plain-language standard — From a published plain- or easy-language standard.

In one minute

A sentence gets hard when the reader has to hold too much open at once — a subject waiting for its verb, clauses stacked before the main point arrives. Length is a symptom, not the cause.

Why it matters

Plain-language guidance across languages converges on the same idea: put the actor and the action close together, and let information arrive in the order the reader needs it.

That is why sentence-length scoring misleads. A long sentence with one clear spine reads easily; a short one built from three nested qualifications does not.

See it

Before

The requirement that applications, unless previously submitted through the regional office, be certified before review is under consideration.

After

We are considering whether applications must be certified before review. Applications sent through the regional office would be exempt.

The rewrite names the actor, moves the exception out of the middle, and splits two decisions apart.

Try it

Find your longest sentence. Underline its main subject and main verb. If more than about ten words sit between them, try moving the interruption to its own sentence.

When not to use it

Long, accumulating sentences are a real instrument — for building pressure, for a voice that circles before it lands. The question is whether the reader is working because you want them to.

How SeamWriter notices it

SeamWriter measures clause load and the distance between subject and verb. It cannot hear cadence, so it never flags a long sentence for being long. English only for now: “needs an explicit subject” is not a universal rule, and Finnish legitimately omits one.

For different writers

Learning to write
Read your sentence aloud in one breath. If you run out of air, your reader runs out of attention in the same place.
Writing professionally
In a document people skim, the first ten words of a sentence carry most of its weight. Put the thing you need understood there.

Sources & basis

  • ISO 24495-1: Plain language — Part 1: Governing principles and guidelines — International Organization for Standardization
  • Selkeä virkakieli — Kotimaisten kielten keskus (Kotus)