listen to it until you can sing it, then play it.
Normal music notation might help you cut up the measures and see the pattern.
Tab is notoriously poor at communicating time. I'm looking at it and I can't make heads or tails.
But yeah, tricky patterns can take time to settle in. nothing for it but more practice.
Ya know, as you say that it occurs to me that tabs leave me clueless...I go by ear or duke it out with music notation.