The entire sentence should be in parentheses, however the portion that is, should contain a period outside of the parentheses.
No, if "etc." is at the end of a sentence in parentheses, you only need one period. The period in "etc." serves as the punctuation for the abbreviation, and there is no need for an additional period to end the sentence.
The end punctuation in a sentence with parentheses depends on the overall sentence structure. If the parentheses contain a complete sentence, the period goes inside the closing parenthesis. If the information in the parentheses is additional or clarifying, the ending punctuation goes outside the closing parenthesis.
Write your sentence (then your parenthetical). Use the same punctuation inside the parentheses as you would outside of them and end the sentence with an ending punctuation mark (period).
Yes, A period, question mark or exclamation point is the definite end of a sentence. One should always place a period at the end of quotation marks. Hope this helps.
In general, the period goes within the parentheses (I really wasn't sure it was a good idea.) My paranthetical sentence was just an example ... but I am not sure what you mean by imcomplete thought...... then you would end with ...
It will be placed at the end of the sentence iand after the parenthesis. It will define that the sentence is concluded
A period would go inside parentheses to finish a complete sentence, but you always need sentence-ending punctuation outside of the parentheses.
No. Typically, you will only put ending punctuation (in this case, a period) if the sentence within the parentheses is a complete sentence.
No, you do not need to add an additional period if "etc." is within parentheses at the end of a sentence. The period that ends the abbreviation "etc." also serves as the sentence-ending punctuation.
Outside. (But if the entire sentence is a parenthetical like this one, it would go inside.)
Use a period to end the final sentence within the parenthetical, then use a period outside of the parenthetical to close the sentence in which the parenthetical takes place.
Use a period inside a parenthetical when the full sentence inside the parentheses ends.