Prepositions join words together and show the relationship between the different parts of a sentence. These little words can cause you big problems. They're called simple prepositions because they are only one word. Simple Prepositions are "short" or "little" words that express relationships including those of space, time, and degree.
Simple prepositions are words like in, on, at, about, over, under, off, of, for, to etc.
The book on the sofa.
Rita is going from Hyderabad to Delhi.
She fell off the ladder.
There is some milk in the can.
Vikas is about nine.
The students sat around the teacher.
kavitha was hiding under the bed.