A person with two commas is a millionaire. 1,000,000. Count them. Two commas.
Yes, many sentences have two commas. Here are a couple of examples, which illustrate two different types of sentence construction where two commas are used: 'My aunt, who is a dentist, lives in Scotland.' 'We walked up the hill, found a grassy spot, and sat down to rest.'
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Neither of your two sentences need any commas.
Yes, you can use two commas in one sentence. Commas are used to separate elements in a sentence, such as lists, clauses, or phrases. Just be sure that the commas are placed correctly to avoid confusion in the sentence's meaning.
They were not, however, dismayed by the news. The above sentence required two commas.
Probably a typing error.
No, commas are generally not used with or. For example, you might say I will eat an orange or an apple with my meal. You would not say I will eat an orange, or an apple with my meal. However, commas are intended to reflect the rhythm of speech, and if a person speaks hesitantly, you might need to use extra commas to reflect that.
No they shouldn't be separated with commas.
Commas should not be used to separate the numbers in a person's height. The number in feet should be followed by an apostrophe and the number in inches should be followed by a quotation mark.
Inverted commas at the beginning and end of the speech. Inverted commas can be either single ' or double ".
Not necessarily. Commas stand for pauses, or to separate ideas for clarity. Where there is no pause and no need for clarification a comma is usually unnecessary.
Use a conjunction in combination with correctly placed commas.