Prepositions and Conjunctions
If you hear a person yell ‘at!’, you’d probably think they're crazy! Prepositions are words that are basically meaningless unless they are used in a phrase.
Prepositions are short words that show direction, time, place, location, spatial relationship with people, places or things. Prepositions sit in front of (is “pre-positioned” before) its object. Knowing when to use which preposition is a bit tricky. We say we are at the hospital seeing someone who is in the hospital. We lie in bed but on the couch. We watch a movie at the theater but on television. You can learn them by looking them up in a dictionary, reading a lot in English and learning useful phrases with prepositions.
Types of Prepositions
We can categorize prepositions based on their function:
Prepositions of Direction
If we want to refer to the direction of something, we use the prepositions such as 'to', 'in', 'across', 'on', and 'along'.
Prepositions of Time
If we want to refer to one point in time, we use the prepositions such as 'in', 'at', and 'on'. We use prepositions 'since', 'for', 'by', 'during', 'from...to', when we want to refer to a period of time.
Prepositions of Place
Prepositions of Place answer the question "Where?". They are used to show the position or location of a thing or person in relation to another thing or person. Prepositions such as 'at', 'in', 'on', 'behind', 'under' and 'above' are some examples of this category.