adverb
The part of speech for "yo" is interjection. EXAMPLE: Yo! What's up?
there is one part of speech in the word up.
preposition
adjective
Peroration
It is a verb as in to gather of build up
A phrase like 'under a vow' is not a part of speech. It is a phrase that is made up of parts of speech. under is a preposition a is an article vow is a noun
do = verb the = definite article washing up = noun
It can eat you all up It can eat you all up
"Stroobly" is not a recognized English word, so it does not have an associated part of speech. It may be a made-up or invented word with no defined grammatical classification.
Do is a verb.
To take a child and bring it up as one's own - verb.