Miten sinä aiot viettää vappua?
Phrase: How are you planning to spend vappu?
Let’s break down the sentence:
Miten is an adverb meaning ”how?”
Sinä is the personal pronoun meaning ”you.” It is used here in the nominative singular.
Aiot is the second-person singular form of aikoa, a verb which means ”plan to do,” ”intend to do,” etc.
Viettää is a verb which means ”to spend” or ”to pass ” when used with nouns describing types of times or periods (holidays, etc.) It appears here in it’s basic infinitive form.
Viettää is a verb which takes the partitive, so the May Day holiday, vappu, appears here in its partitive form, vappua.