57 Conjunctions: and, but, because, when


Conjunctions are words used to connect nouns or clauses. They usually show how the meanings of two clauses are related to each other.

Conjunctions are words that function as a link between clauses in sentences.

  • Clause 1 + and + Clause 2 (addition);
  • Clause 1 + but + Clause 2 (contrast);
  • Clause 1 + because + Clause 2 (cause);
  • Clause 1 + when + Clause 2 (time).
  1. And
    • Kevin reads newspaper and watches television every Friday.
    • They live in New York and love its beautiful library.
  2.  But
    • I like maths lessons but I don’t really like history lessons.
    • You can go hiking there but you have to be very careful.
  3.  Because
    • Anna doesn’t want to have an exam because she did not study.
    • We can’t come to the party tonight because we must study.
  4. When
    • You get very tired when you don’t sleep.
    • We came from the school when nobody was home.

Complex sentences in English need 2 or more clauses. A clause needs at least a subject and a verb.

We can combine two clauses with the following Conjunctions:

  1. And (it connects two sentences);
  2. But (it states either a condition or a contrast);
  3. Because (it states the reason);
  4. When (it states the time of the sentences).

Conjunctions are very important as they act as a link between clauses within a sentence.

The main Conjunctions are: And, But, Because and When and their roles as conjunctions differ in a specific way.

For example:
— “I need to go to the supermarket and the bakery.” = The conjunction and is used to connect two sentences.
— “I need to go to the supermarket but I have to work.” = The conjunction but is used because instead of going to the supermarket I have to work.
— “I need to go to the supermarket because we have no bread.” = The conjunction because is used to link the two parts of the sentence: the action and the reason of the action.
— “I need to go to the supermarket when I finish work.” = The conjunction when is used because I will go to the supermarket once I have finished work.

NOTE: A clause needs to have at least a subject and a verb.

Let’s revise this content within the [Form] section. Take a look at the [Example] section that shows its use within a context.