English Grammar 101: Prepositions
Prepositions are used to link nouns and pronouns to other words within a sentence. The words linked to are called objects.
Usually prepositions show a spatial or temporal relationship between the noun and the object, like in the example below:
The cat is under the table.
Cat is the noun. Under is the preposition. Table is the object.
Here is a list with the most common prepositions: about, above, after, among, around, along, at, before, behind, beneath, beside, between, by, down, from, in, into, like, near, of, off, on, out, over, through, to, up, upon, under, and with.
Notice that you can also have a prepositional phrase, which is formed by the preposition and its object. A preposition phrase can function as adverb, adjective or noun. For example:
The dog was running under the rain.
The prepositional phrase “under the rain” acts as an adverb, specifying where the dog was running.
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Hmm. Prepositions were going to be my next “Mangled Monday” topic . . . I guess maybe I’ll wait a few weeks now! (grin)
Notice that in the examples, each preposition has an object. For example, in the sentence “He ran under the car” “under” is the preposition, and “car” is the object of that preposition. When correctly used, prepositions have objects, which is why we don’t end sentences with prepositions. If the preposition is the last word in the sentence, it can’t be followed by the object it needs.
Since this is a very common issue, we added it to our training manual, which we use in-house with our editors.
When do you use “on” or “in” in front of a date? i.e…
He was found on/in January 23, 2008
or
His next payment is due on/in March 2008?
I really do’nt know when to use the words By and at, especialy when i want to talk about event heppen at a particular time.Can i say for example i knock oof by 12:45 or i have to say i knock oof at 12:45, Which one is approprite to use between these two words?