How to write shorter describing clauses: the boy playing football

Short answer: Shorten a describing clause by dropping who is or which is before an -ing word, and which was before a past participle. The boy who is playing football becomes the boy playing football. The cake which was made by Mom becomes the cake made by Mom. The long form is always correct; the short form uses fewer words.

▶ Start this topic

🎯 I can make a describing clause shorter.

At a glance

Long formShort formRule
the boy who is playingthe boy playingdrop who is before -ing
the cake which was made by Momthe cake made by Momdrop which was before a participle
the dog which is sleepingthe dog sleepingdrop which is before -ing

How to write it

  1. Find a describing clause with who is, which is or which was.
  2. If an -ing word follows, drop who is or which is.
  3. If a past participle follows (made, drawn, written), drop which was.
  4. Read the short form aloud to check it sounds natural.

Rewrite practice

Common mistakes

Full clause or short form?

Both are correct.

Full clauseShort form
The man who is sitting near the door is my uncle.The man sitting near the door is my uncle.
The letter which was written by Dad is on the table.The letter written by Dad is on the table.

Check yourself

  1. Shorten: “The dog which is sleeping is mine.”
    Show the answer

    The dog sleeping is mine. Drop which is.

  2. Shorten: “The cake which was made by Mom is good.”
    Show the answer

    The cake made by Mom is good. Drop which was.

  3. Fix: “The boy who playing football...”
    Show the answer

    The boy playing football... Drop who is.

Rule cards that help

Questions

Can I shorten every describing clause?

No. Only clauses with who is, which is, who was or which was before an -ing word or a past participle.

What is a past participle?

The third form of a verb: make, made, made; draw, drew, drawn; write, wrote, written.

Where is the rule?

See the rule article on shorter describing clauses.

Part of 🌉 Because, when, if, who and more (stone 2 of the Learning Path). See also the English writing guide. Đọc bằng tiếng Việt.

Written for English learners by the English for Fun team. How we write our lessons · Last updated 2026-11-05.

Reviewed by Chinh Q. Hoang, PhD, founder, English for Fun · 2026-10-30

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