Monolingual examples (not verified by PONS Editors)

English
The bilateral relations have seesawed over the last century and a half between normal trade relations and serious tension over ideology and finance.
en.wikipedia.org
Empirical and theoretical work on bipolar disorder has throughout history seesawed between psychological and biological ways of understanding.
en.wikipedia.org
For the next year, possession of the city seesawed.
en.wikipedia.org

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