Small practice. Bright discoveries.Explore the free starter collection
Back to worksheets
EnglishAges 13-15

Main & subordinate clauses

Identify subordinating conjunctions and distinguish main clauses from subordinate clauses. Review suitability for your learners before teaching.

New variationTry interactive challengeBrowse templates

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 13-15

Main & subordinate clauses

Take your time. Show your thinking.

  1. 1. Identify the subordinating conjunction in: “Whereas mercury is liquid at room temperature, iron is solid.”

    Identify the subordinating… · Main & subordinate clauses
  2. 2. Identify the subordinating conjunction in: “If the temperature drops below zero, the pond freezes.”

    Identify the subordinating… · Main & subordinate clauses
  3. 3. Identify the subordinating conjunction in: “Until the fog lifted, the aircraft remained on the runway.”

    Identify the subordinating… · Main & subordinate clauses
  4. 4. Identify the subordinating conjunction in: “Unless you water the seedlings, they will wilt.”

    Identify the subordinating… · Main & subordinate clauses
  5. 5. Identify the subordinating conjunction in: “As soon as the sun rose, the fishermen set sail.”

    Identify the subordinating… · Main & subordinate clauses
  6. 6. Identify the subordinating conjunction in: “Before you submit the test, check every calculation.”

    Identify the subordinating… · Main & subordinate clauses
  7. 7. Identify the subordinating conjunction in: “Whenever the bell rings, the students gather in the hall.”

    Identify the subordinating… · Main & subordinate clauses
  8. 8. Identify the subordinating conjunction in: “Although it rained heavily, the match continued.”

    Identify the subordinating… · Main & subordinate clauses
  9. 9. Identify the subordinating conjunction in: “Because the reef shelters the lagoon, the water remains calm.”

    Identify the subordinating… · Main & subordinate clauses
  10. 10. Identify the subordinating conjunction in: “She checked her compass before she crossed the ridge.”

    Identify the subordinating… · Main & subordinate clauses
  11. 11. Identify the subordinating conjunction in: “Since the tide was high, the ferry docked easily.”

    Identify the subordinating… · Main & subordinate clauses
  12. 12. Identify the subordinating conjunction in: “We stayed indoors because the storm was approaching.”

    Identify the subordinating… · Main & subordinate clauses
12 questions · Seed 45 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 13-15

Main & subordinate clauses

Answers and reasoning. Review before teaching.

  1. 1. Identify the subordinating conjunction in: “Whereas mercury is liquid at room temperature, iron is solid.”

    Whereas

    “Whereas” introduces a subordinate clause contrasting two facts.

  2. 2. Identify the subordinating conjunction in: “If the temperature drops below zero, the pond freezes.”

    If

    “If” introduces the conditional subordinate clause.

  3. 3. Identify the subordinating conjunction in: “Until the fog lifted, the aircraft remained on the runway.”

    Until

    “Until” introduces a subordinate time clause.

  4. 4. Identify the subordinating conjunction in: “Unless you water the seedlings, they will wilt.”

    Unless

    “Unless” introduces the conditional subordinate clause.

  5. 5. Identify the subordinating conjunction in: “As soon as the sun rose, the fishermen set sail.”

    As soon as

    “As soon as” introduces a subordinate clause of time.

  6. 6. Identify the subordinating conjunction in: “Before you submit the test, check every calculation.”

    Before

    “Before” introduces a subordinate time clause.

  7. 7. Identify the subordinating conjunction in: “Whenever the bell rings, the students gather in the hall.”

    Whenever

    “Whenever” introduces the subordinate time clause.

  8. 8. Identify the subordinating conjunction in: “Although it rained heavily, the match continued.”

    Although

    “Although” introduces the subordinate concession clause “Although it rained heavily”.

  9. 9. Identify the subordinating conjunction in: “Because the reef shelters the lagoon, the water remains calm.”

    Because

    “Because” introduces the subordinate reason clause.

  10. 10. Identify the subordinating conjunction in: “She checked her compass before she crossed the ridge.”

    before

    “Before” introduces the subordinate clause indicating time.

  11. 11. Identify the subordinating conjunction in: “Since the tide was high, the ferry docked easily.”

    Since

    “Since” introduces the subordinate clause explaining the reason.

  12. 12. Identify the subordinating conjunction in: “We stayed indoors because the storm was approaching.”

    because

    “Because” links the subordinate reason clause to the main clause.

12 questions · Seed 45 · Age guidance, not curriculum certification