The answer depends on how you side with a declaration from Merriam-Webster: "It is permissible in English for a preposition to be what you end a sentence with," the dictionary publisher said in a ...

A preposition is a word that tells you where or when something is in relation to something else. Examples of prepositions include words like 'after', 'before', 'on', 'under', 'inside' and 'outside'.

Here's how Merriam-Webster puts it. It is permissible in English for a preposition to be what you end a sentence with. Now, before you scurry over to your manual typewriter to clack out a letter ...

but there is space here only for a few of them. If you are in doubt as to which preposition to use, always check with a good dictionary.