He fluctuated between hope and despair.

My courage and my resolution are firm; but my hopes fluctuate and my spirits are often depressed.

The policy fluctuated between two opinions.

The temperature here can fluctuate wildly, even within the same day.

Mary fluctuates between having an exaggerated sense of her own importance and an inferiority complex.

“I fluctuate between wanting to mark Brexit quietly but symbolically with some friends in Berlin, or just staying home with my husband and going across the road to our local bar for a couple of strong cocktails. Or maybe just going to bed and hiding under the duvet. Whatever I end up doing, the mood deep down will be sadness,” she said.

The budget is bound to fluctuate due to the economy.

The price of gold fluctuates daily.

Her weight fluctuates like crazy.

Vegetable prices fluctuate according to the season.