[RikaStrom]

I used “swum” the other day for past tense of swim and was told that it wasn’t a word. He didn’t like it when I copy and pasted Dictionary.com and emailed the office to advise him of his slight error in correcting me at lunch.

A boy from Channelview should have known better. :-)

[Rte66]

As long as you used “swum” in the perfect tense, it was fine - as in “has swum,” “had swum,” “have swum” and so forth. It’s not a stand-alone.