Usage of on, in, at, onto, into

[Fenny]

Hallo ELS members ...Can you give me the sample how to use on, in, at , onto, and into ?

[Benjamin]

"in" and "on" state the position of an object or person with repsect to another object

"The book is in the box" (inside)
"The book is on the box" (on top of)

"into" and "onto" suggest movement from one place to another

"I put the book into the box" (it was outside but now it is inside)
"The cat jumped onto the chair" (the cat was on the floor but is now on the chair)

"at" is used to state locations
"I am at the train station"
"I work at the post office"

"at" can also be used with time.
"let's meet at 5 o'clock".

These are just one of many ways they can all be used.