The past tense of reminisce is reminisced.
Every now and then, I tend to reminisce about the past.
Reminisce Cafe was created on 2008-02-01.
Reminisce - artist - was born on 2008-05-28.
Either is correct depending upon the usage. Reminisce is a verb. Upon and about are prepositions.Upon can be used in lieu of on the occasion of; such as in the sentence, "She likes to reminisce upon her child's first Christmas."About is often used as a substitute for of, concerning, and in regard to; such as in the sentence, "They often reminisce about their wedding day."
But he had to stop and reminisce about the stranger's peculiar character.
Reminisce - 2013 I was released on: USA: 21 September 2013
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Reminiscent is the adjective form of reminisce. For instance, The song by Bruno Mars was reminiscent of funk from the 1970s.
The correct word to use is "reminisce." It is the base form of the verb, while "reminiscing" is the present participle form used when describing ongoing actions or states.
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Reminiscent