Here is a sentence with the word 'dog':
The stray dog look at me with its mournful eyes, before turning away and trudging down the empty, dark alley.
the dog
'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.
"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.
My dog was the tiniest dog in the dog show.
"The boy chased the dog" is a complete sentence. The verb, chased, is transitive. The object is "dog".
The dog is the most loving pet.
'There is a dog' is the complete subject of the sentence. It consists of the subject 'dog' and the linking verb 'is'.
dog
dog
"The detrimental dog kicked the harmful kitty" is a sentence - there is a subject (dog) and a verb (kicked).