gmatter0913
So you're saying that the rule is as below:
Phrase co-ordinating conjunction Phrase
Clause co-ordinating conjunction Clause
Clause sub-ordinating conjunction Clause
Co-ordinating conjunctions can be used to join either two clauses or two phrases, but not a clause and a phrase.
On the other hand, sub-ordinating conjunctions can be used only to join two clauses.
Will that be correct?
yes :
Co-ordinating conjunctions can connect :
1) individual words (acting as noun=pronoun , verb , adjective , adverb )
2) phrases (all phrases formed by the role of word types above + prepositional phrases )
3) clauses -- in this case, use COMMA + FANBOYS ( which you must already be aware )
the difference between (1),(2) and (3) is that (3)=clause connectivity needs a comma ALWAYS before the co-ordinating conjunction.
in case of (1) and (2) : the number of entities being joined determine the need for a COMMA before a co-ordinating conjunction
use X
and Y ( for two elements )
use X , Y
, and Z ( use comma + coordinating conjunction for three or more elements )
Correlative Conjunctions are a special set of co-ordinating conjunctions that
(a) always come in pairs
(b) can join ONLY two elements : not more than two.
(c) can join any element types : words , phrases and clauses
Sub-ordinating conjunctions
can connect clauses ONLY. (not words or phrases) -- to connect the main clause (main idea) with a subordinating clause (supporting idea)
some words can play the role of sub-ordinate conjunctions in some contexts and prepositional phrases in other contexts . I've seen "since" being used as a preposition and a conjunction in official questions . I'm sure there are more , but since is one word that popped out of my head right away.