Nonsense. There is no sentence here, only a string of words.
(an advertising slogan that relies on the implications of the three words)
That is not a sentence because it does not present a complete thought, but it is representative of the figure of speech known as alliteration.
Fragment
"Tomorrow" can be a pronoun (of the indefinite type) or an adverb (of time). Example as a pronoun: "Tomorrow is a bank holiday." Example as an adverb: "I do not have time today but will take you shopping tomorrow."
Interrogative sentence.
It is a declarative sentence.
Here today, gone tomorrow. H + ear (ere) : calendar = today : g + on = gone : 2 + morrow = tomorrow.
I am planting a different type of leek in the garden today.
A run-on sentence is one that lacks conjunctions and/or proper punctuation when joining two or more independent clauses. One type of run-on sentence is called a comma splice. Many people consider comma splices and run-on sentences to be the same thing, but I believe there is a difference. You can have a run-on sentence without a comma splice.The furnace is broken, the repairman can't come until tomorrow.
Toyota Type C engine was created in 1939.
Toyota Type E engine was created in 1938.
Toyota Type B engine was created in 1937.
Toyota Type S Engine was created in 1947.
What type of oil for a 2008 Toyota matrix