...the amount is not always the same.


Senior Member
She donates money to the orphanage every month. But the amount is not always the same.

I made these sentences and wonder if the underlined sentence sounds natural.
Here are other possible expressions that I can think of:
1. the amount is not fixed.
2. the amount is not set.
3. the amount is varying.

Thank you so much.
  • e2efour

    Senior Member
    UK English
    It sounds perfectly natural to me.
    If it is not always the same, it varies each time, which is also a natural way of speaking, and 1. and 2., although not wrong, I find less common.
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