The word cleanest is an adjective. It means to be the most clean.
The part of speech that the word my is used as is an adjective.
"Beautification" is a noun, as are most words that end in "-tion"
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.
The word expectantly is an adverb. You can easily spot adverbs as the most of them end in -ly.
most likely verb
The word tautest is an adjective. It describes the most taut.
The word cleanest is an adjective. It means to be the most clean.
The part of speech for this particular word is a noun.
The part of speech that the word my is used as is an adjective.
The part of speech for the word diplomacy is a noun.
The part of speech for the word civilian is English grammar.
H is a letter, not a word. To be a part of speech, it needs to be a word.
The part of speech for the word "boulevard" is a noun.
The word speech is a noun.
The word loftiest is an adjective. It means the most lofty.
The part of speech for this particular word is a noun.