Skip to main content
20% off your first payment$5.99 for your first week, then $7.49 · Ends November 15, 2026See plans

Build a Sentence

Complex sentence with "although/while"

"Although" introduces a concession. "While" shows simultaneous actions or contrast between two situations.

6 worked examplesCompound Complex

The pattern

ALTHOUGH + surprising fact, main clause: ALTHOUGH it rained, they went.

Worked examples

6 shown

Word order shown is Reach120’s reading of standard English usage for this sentence. ETS does not publish a correct/incorrect judgement for individual items, and this is not an official score.

medium

How did the project end?

The words you are given

  • completed
  • and
  • it took
  • They
  • expected
  • the design
  • although
  • longer than

The order that works

They completed the design although it took longer than expected.

medium

What did you do on Saturday?

The words you are given

  • cleaned
  • while
  • our dinner
  • I
  • my sister
  • but
  • prepared
  • the house

The order that works

I cleaned the house while my sister prepared our dinner.

medium

How was the interview?

The words you are given

  • answered
  • inside
  • confidently
  • extremely nervous
  • although
  • She
  • and
  • she felt

The order that works

She answered confidently although she felt extremely nervous inside.

medium

What did she accomplish?

The words you are given

  • her degree
  • but
  • at
  • the hospital
  • earned
  • working full-time
  • She
  • while

The order that works

She earned her degree while working full-time at the hospital.

medium

How did the students perform?

The words you are given

  • passed
  • with essays
  • struggled
  • Most students
  • and
  • several
  • although
  • the exam

The order that works

Most students passed the exam although several struggled with essays.

hard

What happened during the merger?

The words you are given

  • their operations
  • many employees
  • although
  • and
  • about potential
  • The companies merged
  • expressed concerns
  • layoffs

The order that works

The companies merged their operations although many employees expressed concerns about potential layoffs.

Practice this pattern against the clock.

Try Build a Sentence

Reach120 is an independent practice tool. It is not affiliated with, endorsed by, or approved by ETS, and it does not provide official TOEFL® test scores.

TOEFL® is a registered trademark of ETS. This product is not endorsed or approved by ETS.