It can be difficult for people to find and identify prepositions. A preposition usually tells something about an object in relation to another object. In the sentence, "The books is near the fireplace," the word "near" is the preposition and the word "fireplace" is the object of the preposition. In the sentence, "The leaf fell through the branches," the word "through" is the preposition and the word "branches" is the object of the preposition.
Sometimes, it isn't as easy to recognize that a word is a preposition. In the sentence, "The duck came towards the pond," the word "towards," is the preposition and the word "pond" is the object of the preposition.
The words that I have used are only a sample of a few prepositions. While this trick may not always make perfect sense, it usually works. I was taught that if having trouble telling if a word is a preposition to use the sentence, "The squirrel went ______ the tree" and to fill in the blank with the word that is supposedly the preposition. If the sentence makes sense, that it is a preposition.
Obviously, "The squirrel went near the tree," "the squirrel went through the tree," and "the squirrel went towards the tree." all make sense.
Words that can be used as prepositions that may be confusing are "concerning," "considering," "following," and "minus."
Here are the sentences.
The squirrel went concerning the tree. The squirrel went considering the tree. The squirrel went following the tree. The squirrel went minus the tree.
While these may not all make sense, sentences can have more than one preposition. If these sentences don't make sense, another prepositional phrase can be added.
The squirrel went to the meeting concerning the tree.
That sentence now has two prepositions - "to' and "concerning." The objects of each preposition are "meeting" and "tree."