At this link you will find an enumeration of a few instances that certainly have the potential for perjury:
https://www.vox.com/2018/10/2/17927606/brett-kavanaugh-perjury-lied-congress
I'll include a couple here:
which is followed by this Tweet:
I find it rather difficult to believe that sexual references of that nature from a man's adolescence could be so easily forgotten in healthy middle age.
Can I prove he committed perjury? No. As I've been arguing in the Elizabeth Warren thread, that's a rather high bar to cross: It requires knowledge of a man's state of mind at the time for definitive "proof". That's rather nearly impossible. So let me be absolutely clear:
1. I am not proposing a criminal indictment of Kavanaugh for perjury. Insufficient proof.
2. I am in fact proposing the evidence is sufficient to
keep him from getting the job.