If you put one thing into another, you put the first thing inside the second.
If you go into a place or vehicle, you move from being outside it to being inside it.
If one thing goes into another, the first thing moves from the outside to the inside of the second thing, by breaking or damaging the surface of it.
If one thing gets into another, the first thing enters the second and becomes part of it.
If you are walking or driving a vehicle and you bump into something or crash into something, you hit it accidentally.
When you get into a piece of clothing, you put it on.
If someone or something gets into a particular state, they start being in that state.
If you talk someone into doing something, you persuade them to do it.
If something changes into something else, it then has a new form, shape, or nature.
If something is cut or split into a number of pieces or sections, it is divided so that it becomes several smaller pieces or sections.
An investigation into a subject or event is concerned with that subject or event.
If you move or go into a particular career or business, you start working in it.
If something continues into a period of time, it continues until after that period of time has begun.
If you are very interested in something and like it very much, you can say that you are into it.