Wowenglish, there is virtually no difference between the two uses. Both are temporal subordinators and both can be interpreted as ' at the same time that something is happening ': one enjoys having his/her money and possesses it at the same time; looking after the children coincides in time with their mother doing the shopping. Respectfully, Gleb Chebrikoff.
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WowenglishI wonder if there is any difference between "while(1)" and "while(2)".I don't sense any significant difference, although the temporal aspect is more obvious to me in the second example. In the first example, I s
1. You might as well enjoy your money while you’ve got it.
2. Would you look after the children while I do the shopping?