It is acceptable, but "what" is unnecessary.
No, "Is what" is not a complete sentence in proper English. It is grammatically incorrect and lacks subject-verb agreement. It needs additional context or words to form a complete and coherent sentence.
No, it is not proper English to say "on tomorrow." The correct phrase is "tomorrow."
No, it is not considered proper English to use "these ones." Instead, you should simply say "these" without the unnecessary "ones."
"Gotten" is considered standard English in American English, while it is less common in British English where "got" is preferred. It is not considered slang in either dialect.
"Vigo" does not have a direct translation in English. It is a proper noun often used as a name for people or places.
No, the sentence is not proper English. It should be "We are talking to ourselves."
English is a proper adjective.
The word English is not a proper noun when it is used as a proper adjective. That is an English accent, an English type automobile, an English looking top hat.
What is "do writing?" This does not appear to be proper English. If the question were rephrased in proper English, I think we would know how to answer it.
Not everyone here knows proper English. Others may be lazy and use chat speech. Then of course, some are just young. In addition, there is some debate as to what is proper English. Proper British English is not the same as proper American English. Other English-speaking nations have their own variations of English.
Well, for starters, your question is not proper english.
No, "irregardless" contains a double negative. "Regardless" is proper English, but "irregardless" is not.
No, it is not proper English to say "on tomorrow." The correct phrase is "tomorrow."
It is a proper noun, used to the refer to "the English" (the English people) or to the language English. It is a proper adjective when used to refer to England or Great Britain.
Yes, the noun English is a proper noun, the name of a specific nationality and a specific language. A proper noun is the name of a specific person, place, or thing. The word English is also a proper adjective.
What is "do writing?" This does not appear to be proper English. If the question were rephrased in proper English, I think we would know how to answer it.
proper...
Yet is a proper English word. Yet is not a slang word.