Say your sentence aloud. If you find you pause before the word 'therefore', you will probably want to insert a comma. If you do not pause, no comma is required. Use a comma when the sense requires it, not because you have a specific word in your sentence.
I do not use a comma before and after that word, therefore you will not see it in any sentence I have written.
comma in front of therefore; semi colon in back of therefore
Either a comma or a semi colon can be used, depending on the rest of the sentence.
Before eg. The television has broken, therefore I will get it fixed.
You would put the comma before the therefore. for example: I am a girl, therefore I wear make-up and have long hair. (Just an example not all girls wear make-up and have long hair.)
Not necessarily either. There is no word or phrase in English that requires a comma. Commas are a feature of sentence structure, not of words. " Your data is incomplete and your conclusion is therefore wrong." both before and after UNLESS its at the start of a new sentence "i like to run, therefore, i run a lot. yes, but should also reference to lexis and structures.
If it is used as what is termed an "interrupter," you use a comma. If it is joining two clauses, you use a semicolon before it and a comma after it. Interrupter: He would, therefore, appreciate a quick response. Joining clauses: He appreciates quick responses; therefore, I shall endeavour to provide them without delay.
last comma before the and is not necessary
no. if but before is a sentence on its on and after but is a sentence on its own then put a comma before but.
No, a comma does not go before the word 'in'.
the comma would be before Or In A Sentencee. =]
The comma goes after.