Prepositions: a preposition is a word placed before a noun or pronoun to form a phrase
modifying another word in the sentence. The prepositional phrase nearly always
functions as an adjective or as an adverb.
Ex. The road to hell is paved with good intentions.
Explanation: To hell functions as an adjective modifying the noun road. With good
intentions functions as an adverb modifying the verb is paved.
More examples of prepositions: about, across, except, beneath, in next, out, past without
Conjunctions: conjunctions join words, phrases, or clauses, and they indicate the relation
between the elements joined. There are four types of conjunctions…
Coordinating Conjunctions: connect grammatically equal elements.
And, but, or, nor, for, so, yet
Correlative Conjunctions: are pairs of conjunctions that connect grammatically equal
elements.
Either…or, neither…nor, not only…but also, whether…or, both…and
Subordinating Conjunctions: introduce subordinate clauses and indicate the relation
between independent clauses.
After, although, as, as if, because, before, even though, if, in order that, rather than, since,
so that, than, that, though, unless, until, when, where, whether, while
Conjunctive Adverbs: are adverbs used to indicate the relation between independent
clauses.
Accordingly, also, anyway, besides, certainly, consequently, conversely, finally,
furthermore, hence, however, incidentally, indeed, instead, likewise, meanwhile,
moreover, nevertheless, next, otherwise, similarly, specifically, still, subsequently, then,
therefore, thus
Interjections: words used to express surprise or emotion
Oh! Wow! Hey!