In the phrase "extra careful" extra is an adverb modifying the adjective careful.
There is no grammatical issue here, simply an adjective and a noun. Be careful with the word priority. It means "precedence, especially regarding relative importance." The sentence "Such-and-such is the top priority" is not good. Careful speakers say "Such-and-such has top priority."
The predicate adjective in this sentence would be careful.
quick careful extreme The other words are adverbs -- many adverbs end in -ly
To describe Gregory, he would be... careful, brave, and daring.
Careful has no plural. It is an adjective, and adjectives do not become plural.
The adjectives are careful (modifies Toni) and new(modifies car).The word her is technically a possessive adjective rather than a pronoun.
There is no grammatical issue here, simply an adjective and a noun. Be careful with the word priority. It means "precedence, especially regarding relative importance." The sentence "Such-and-such is the top priority" is not good. Careful speakers say "Such-and-such has top priority."
The predicate adjective in this sentence would be careful.
Hot, Heat, Fire, Burning, Crackling, Warm, Ember, Blaze, etc. Some of these can be both adjectives and nouns, so be careful.
Example sentence - Amanda is not careful when she drives vehicles.
Yes, it is grammatically correct to begin a sentence with "and" in informal or creative writing. However, in formal writing or academic essays, it is generally considered best to avoid starting a sentence with a coordinating conjunction like "and".
quick careful extreme The other words are adverbs -- many adverbs end in -ly
careful
To describe Gregory, he would be... careful, brave, and daring.
The adverb phrase in the sentence is "slowly and carefully."
Example sentence - If I am careful with my books they will last a long time.
He was a careful man who did not like to take risks is an example of a redundant sentence. A redundant sentence is one that says the same thing more than once as in not liking to take risks and a careful man.