The document discusses different conjunctions and phrases that can be used to introduce reasons or purposes for something. It provides examples of using "because", "due to/owing to", and "that's why/for this reason" to give reasons for statements. It also gives the conjunction "however" as a way to introduce a contrasting purpose or reason.

4. REASON
BECAUSE + SENTENCE
We study english because it is important
My mum has to be in bed because she is little
sick

5. Because of
Due to + noun or ing
Owing to
People prefer to go to the beach because of the
weather
That´s why
For this reason + sentence
What is why
Cendia is a good English Institute that´s why there are
a lot of students

6. PURPOSE

7. But
Nevertheless
However
And
So
Ecuador has a lot of natural resources,
however most people are poor.