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      Compound and adverbial complex sentences revision

      Lesson details

      Learning outcome

      You can recognise the difference between compound sentences and adverbial complex sentences.

      Key learning points

      1. A comma is a punctuation mark with more than one purpose.
      2. Commas are often used to demarcate clauses in a range of sentence types.
      3. If the adverbial clause starts an adverbial complex sentence, it is followed by a comma then the main clause.
      4. A comma is used before "but" and "or" co-ordinating conjunctions when they join two main clauses in a compound sentence.
      5. Grammatically accurate sentences start with capital letters and most often end with full stops.

      Keywords

      • Comma - a punctuation mark used before "but" or "or" co-ordinating conjunctions in a compound sentence

      • Comma - a punctuation mark used to separate the first adverbial clause from the second main clause in an adverbial complex sentence

      • Adverbial complex sentence - a sentence formed of a main clause and an adverbial subordinate clause

      • Adverbial clause - a type of subordinate clause that starts with a subordinating conjunction

      • Preposition - word or words that can tell the reader where a noun is

      Common misconception

      Pupils are confused with when to use a comma and when not to use a comma.

      A comma is used before "but" and "or" co-ordinating conjunctions. A comma is used after the adverbial clause if it is first in the sentence.

      Teacher tip

      Use gestures to indicate usage of the comma, main clause and adverbial clause.

      Licence

      This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Fill in the gap: "simultaneous" means at the same __________.

      place
      manner
      Correct answer: time

      Q2.
      Fill in the gap: a preposition is a word or words that can tell the reader where a __________ is.

      Correct answer: noun
      adjective
      adverb

      Q3.
      Fill in the gap: an __________ clause is a type of subordinate clause that starts with a subordinating conjunction.

      main
      relative
      Correct answer: adverbial

      Q4.
      Which subordinating conjunction is useful for giving a reason?

      when
      so
      Correct answer: because
      as

      Q5.
      Which subordinating conjunction is useful for stating simultaneous action?

      because
      Correct answer: as
      so
      when

      Q6.
      What type of sentence do you write if it includes one main clause and an adverbial clause?

      Correct Answer: adverbial complex sentence, complex sentence, adverbial complex, complex

      6 Questions

      Q1.
      Match the conjunction to its purpose.

      Correct Answer:conjunction,a word that joins words, phrases or clauses

      a word that joins words, phrases or clauses

      Correct Answer:co-ordinating conjunction,a word that joins 2 main clauses to form a compound sentence

      a word that joins 2 main clauses to form a compound sentence

      Correct Answer:subordinating conjunction,a word that starts an adverbial clause

      a word that starts an adverbial clause

      Q2.
      What is "and" co-ordinating conjunction useful for?

      for a positive and a negative
      for an option or an effect
      Correct answer: for building on

      Q3.
      What is "but" co-ordinating conjunction useful for?

      for an option or an effect
      Correct answer: for a positive and a negative
      for building on

      Q4.
      Where do you place a comma in a compound sentence?

      before "and" co-ordinating conjunction
      after "or" co-ordinating conjunction
      at the end of the sentence
      Correct answer: before "but" and "or" co-ordinating conjunctions

      Q5.
      Match the subordinating conjunction to its purpose.

      Correct Answer:when,for giving a time frame

      for giving a time frame

      Correct Answer:so,for giving a result

      for giving a result

      Correct Answer:as,for stating simultaneous action

      for stating simultaneous action

      Correct Answer:because,for giving a reason

      for giving a reason

      Q6.
      Fill in the gap: if the adverbial clause is first in a complex sentence, you put a after it.

      Correct Answer: comma, ,, coma, commu, comma

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