1. Several errors? I think not. You,re wrong. Please quote the rule that says it is incorrect to begin a sentence with a conjunction. That is no more incorrect than ending a sentence with a preposition as that rule was made up, and both do not exist. A comma SHOULD follow charitable as it replaces 'and". "You're" is an informal pronoun, dixit Mr WEBSTER. Look it up;<quoted text>
Since you are correcting LRS incorrectly, I feel compelled to correct your grammatical errors.
1.“ And I'll be charitable , will overlook your non-comprehension of adjective vs informal pronoun and verb.” has several errors. It is incorrect to begin a sentence with a conjunction. No comma should follow “charitable”.“You’re” is not an informal pronoun but is a subject pronoun contraction.
2.“Not to mention the "it's" and the "its" is a sentence fragment and is therefore incorrect.
3.“Get up off that canvas, god, your lip prints are all over it” needs either a period or an exclamation point after “canvas", then “god” should be capitalized since it's the beginning of the next sentence.
4. Not the first time(comma needed) either ,as(comma not required), I've said , you do have problems with "your" and "you're" , not to mention "its" and "it's". A period should be after “either” or “said”. If after “said”, you need to capitalize “you”.
5. No comma is required after “smartest”. You should have the conjunction “and” in its place. You incorrectly began the next sentence with the conjunction,“Then”.
2. Wrong. It is not a sentence fragment, it is part and parcel of a complete sentence;
3. Wrong. No period required after "canvas", as it is a choice between said period and comma. Therefore, "god" need not be capitalized. And should it be, and it need not be, the "G" should be capitalized, not the whole word;
4. Sorry, try as you may, there is not one punctuation error in nu ber4. Incidentally, all your paragraphs, from 1 to 5, should end with a semi-colon, not a period;
5. I can't find number 5. Perhaps it's too early. Do pont it out to me and I'll reply in an isntant.
I think it's sad that a non-anglophone like myself should have to correct you. Your first language is English, correct? It's my second language.