Questions & Answers about Te echo muchísimo de menos.
Because te means you and functions as the object of the verb phrase.
In Te echo muchísimo de menos, the speaker is saying I miss you very much, so Spanish needs to show who is being missed:
- te = you (informal singular)
- echo de menos = I miss
So:
- Te echo de menos = I miss you
- Echo de menos a Marta = I miss Marta
Without te, the sentence would just mean I miss (someone/something), but it would not say whom.
Literally, it is not something that maps neatly onto natural English. The expression echar de menos is an idiom meaning to miss someone or something.
If you try to translate it word by word:
- echo = I throw / I cast / I put
- de menos = not very transparent on its own here
But as a whole, echar de menos simply means to miss.
The key point is: learn echar de menos as a fixed expression, not as separate words with a literal English equivalent.