See above. Neither one is as natural as "I ordered this equipment in May 2022". I realise now that my suggestion of "last May" could be ambiguous - it could mean "May 2023" (literally the last May that happened) or "May 2022" (May of last year).1 - I ordered this equipment in May last year.
2 - I ordered this equipment last year in May. Grammatically correct but not as natural as 1.
Are both 1 and 2 correct?
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