http://www.cs.utexas.edu/users/EWD/transcriptions/EWD04xx/EWD498.html:
We can found no scientific discipline, nor a hearty profession on the technical mistakes of the Department of Defense and, mainly, one computer manufacturer.
I'd always thought that words after "can" should be in present tense, but the above sentence doesn't sound wrong so now I'm wondering if this rule even exists at all.
Must the word after "can" be present tense?