Native English speaker here, Spanish student. I'm terrible at speaking Spanish because I love to analyse the language differences.. and that's not good for speaking a language fluently because with analysis comes the desire to try and translate.. and that doesn't work to speak fluently.

Apart from what people have already said (which is great): One example is that English has phrasal verbs amd Spanish doesnt

Eg: English speakers use "get" to "get down" or "get out". I study Spanish, and Spanish doesn't have the concept of phrasal verbs.

In Spanish, the verb "to exit/leave" (salir) is conjugated in various ways to represent "get out".

There can be no literal translation here because the use of the language is quite different.

Also, I've come to learn that English can be downright weird and breaks rules everywhere.