My mother told me to smile for the picture, but I was miserable, and simply incapable of doing so.
People who use question marks on this site are incapable of forming correct sentences.
People who get all F's are incapable of getting an A+.
Lacking the necessary ability, power, or capacity.
Unable to perform adequately: incompetent.
The word incapable is an adjective.
what part of speech is work
adverb
i want to know what part of speech is camping
what part of speech is beneath
what part of speech is eleven
Jellyfish are incapable of speech nor are they likely to have friends.
The salivary glands are incapable of speech and cannot describe their location.
part of speech
The part of speech for this particular word is a noun.
adverb
what part of speech is work
what part of speech is beneath
the part of speech sashay is a averb
Did is a verb, and not is an adverb. Didn't is not any part of speech. It's a contraction of did and not.
Adjective
The word speech is a noun.
No, but it's part of a noun which the noun is the part of speech.