This question needs to be more specific. If it relates to a women's reproductive cycle, then the answer is somewhere around 28 days. If this refers to the changing of classes at school, then the answer might be, "when the bell rings". Lastly, if the reference is for sentence structure, then the answer might be, "at the end of a complete sentence, followed by another period at the end of another complete sentence".
No, you do not include a second period when a sentence ends with an abbreviation like "MD." Just one period is used to end the abbreviation and the sentence.
In the periodic table, a period ends when the elements in that row have filled their outermost electron shell. Each period corresponds to a principal energy level, and a new period begins when a new energy level starts filling with electrons. For example, the first period consists of two elements (hydrogen and helium), while the second period starts with lithium and ends with neon.
I use a full stop to indicate the end of a sentence. It helps the reader understand where one thought ends and another begins.
No, you do not need to add an additional period at the end of a sentence that already ends with an abbreviation like Oct. The period from the abbreviation serves as the ending punctuation for the sentence.
Punctuation is sentences improves the ability of a reader to detect clues about how to read the sentence. This includes the use of a period at the end of a sentence, and the use of a capital letter to begin the next sentence.
How can you tell where one square structure ends and another begins
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.
Et cetera is abbreviated to etc. No second period is needed but you will sometimes find one anyway.
Only one state, Arkansas, begins with A but does not end with A.
what is the distance from one end to another of vanautu
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The menstrual cycle begins Day 1 of your period, about half way through the cycle you ovulate and the last day is the day before your next period starts. Day 1 begins the cycle all over again. The last day of your cycle tells you the length of your cycle, on average between 24 and 34 days, although longer and shorter cycles are still "normal".