Due to bad grammar!

This problem occurs due to people throw waste into the irrigation system.

Ok well it’s nice to use an alternative to because, but a change of cause effect signal can often mean a change of grammar.

Because

The grammar for because is familiar to most people:

Prices increased because demand increased.

In this structure, Prices increased is an independent clause (= it can stand alone as a sentence), and demand increased is also an independent clause.

We could also think of this structure as:

because + cause sentence

Due to

The grammar for due to is slightly different:

Prices increased due to an increase in demand.

In this case Prices increased is an independent clause, while an increase in demand is a noun (or noun phrase).

Again, this structure could also be thought of as:

due to + cause noun

Because of

Indonesian flag A common error is to treat because of in the same way as because. For example it is incorrect to say:

Prices increased because of demand increased.

Because of follows the same structure as due to:

Prices increased because of an increase in demand.

Review

So, let’s review these three cause effect signals:

  • Prices increased because demand increased. (because + cause sentence)
  • Prices increased because of an increase in demand. (because of + cause noun)
  • Prices increased due to an increase in demand. (due to + cause noun)

And if we apply these to our opening example then we get:

  • This problem occurs because people throw waste into the irrigation system.
  • This problem occurs because of the irresponsible behaviour of people who throw waste into the irrigation system.
  • This problem occurs due to the irresponsible behaviour of people who throw waste into the irrigation system.

Using a combination of these in your IELTS speaking and writing will help to increase your scores in all criteria.