"The dog" isn't a sentence because it doesn't have a verb.
If you are asking what part of speech it is, "the" is an article, and "dog" is a noun.
It is a declarative sentence.
exclamatory
transitive
Yes you can Example : The Doberman was barking at me (Doberman:a type of dog)
A verb is something you do, for example, "run", "jump", etc. "Bark" would be the verb in the sentence, "The dog barked."
A preposition is a type of dog. They don't go in the beginning of the sentences
the dog
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I'm unfamiliar with that type of dog. I'm unfamiliar with the subject. I'm unfamiliar with the candidates.
'My dog and I' if this is the subject of the sentence or clause; 'My dog and me' if this is the object of the sentence or clause. Examples:My dog and I ran home when the rain started.My neighbor and her dog often walk with my dog and me.
'My dog and I' if this is the subject of the sentence or clause; 'My dog and me' if this is the object of the sentence or clause. Examples:My dog and I ran home when the rain started.My neighbor and her dog often walk with my dog and me.
The possessive form for the noun dog is dog's.Example sentence: The dog's collar has the dog's name in rhinestones.