The final 2 (7th & 8th headings) on Conjunctions are Purpose & Consequence:-

read more from this topic.....

The next two (the 5th and 6th headings) under Conjunctions are: Condition and Manner or Degree:
5.  Condition
The conjunctions under the heading Condition are: except that, if, unless
Examples:

read more from this topic.....

The 3rd and 4th headings on Conjunctions are Cause or Reason and Concession:-
3.   Cause or Reason
Conjunctions under the heading of Cause or Reason are: as, because, lest, since

read more from this topic.....

Conjunctions can also be placed under 8 different headings.  Lets look at the first 2 headings; Time and Place
1.  Time
Conjunctions used to indicate time are: after, before, since, until, till, when, whenever, while, now that, as

read more from this topic.....

What are Conjunctions?
Conjunctions are words used to link words, phrases and clauses to make them into a more meaningful sentence.  For examples:-

Abdul is singing while taking a shower.
Are buses and taxis considered public transportation?
I can meet you before you leave.

There are 3 categories of conjunction:-

read more from this topic.....