Tuesday, April 5, 2016
Consider this expression:
"I have swum and I don't need to go to the bathroom again."
Many are likely not to understand that "swum" is the past participle form of "swim".
See "swim/swam/swum".
Let me exemplify the three forms.
I swim always
I swam yesterday.
I have swum.
CAUTION: Never say "swam" when you should say "swum", or the other way round.
I hope this is clear enough?
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