It could be a past tense verb ("They adopted a girl"), or it could be a past participle used as an adjective ("This is my adopted son"). We can't tell which without seeing how it's used in a sentence.
Adopted can be used as a verb and an adjective. Verb: That family adopted three children. Adjective: an adopted child
Adopt is a verb. Example: The adopted three girls.
The part of speech that the word my is used as is an adjective.
The part of speech for this particular word is a noun.
The part of speech for the word civilian is English grammar.
The part of speech for the word "boulevard" is a noun.
The word speech is a noun.
It is not ANY part of speech, there is no such English word as "stroobly".
The part of speech for this particular word is a noun.
The word speech is a noun.
The word speech is a noun.
A suffix changes a word's part of speech. For example, the word 'happy' is an adjective. But when you add a suffix, which is an ending, it can change the part of speech. Happily is an adverb. Happiness is a noun.