"Since" may be used as a conjunction. It can also be an adverb and a preposition.
Since is an adverb, preposition or a conjunction As an adverb - she at first refused, but has since consented... As a preposition - It has been warm since noon'... As a conjunction - He has been busy since he came...
"For" can be used as a conjunction to introduce a reason or explanation for something. For example, "She was late for work, for her car broke down on the way."
for as a conjunction - since
The word since is a conjunction, and has no plural.
No, "since" is a subordinating conjunction, not an interjection.
"Since" is a conjunction, and "while" can function as both a conjunction and a noun.
AND is the conjunction in the sentence since it binds two sentences together.
AND is the conjunction in the sentence since it binds two sentences together.
AND is the conjunction in the sentence since it binds two sentences together.
AND is the conjunction in the sentence since it binds two sentences together.
Yes, since is a preposition (e.g. since noon). It can also be a conjunction (since you arrived) or an adverb (gone ever since).