What part of speech is you can see those mountains from your house?

Here's a breakdown of the parts of speech:

* You - Pronoun (subject)

* can - Modal verb

* see - Verb (main verb)

* those - Determiner

* mountains - Noun (object of the verb "see")

* from - Preposition

* your - Possessive adjective

* house - Noun (object of the preposition "from")