if you can push on through the slow spots 
(ROOT (SBAR (IN if) (S (NP (PRP you)) (VP (MD can) (VP (VB push) (PRT (RP on)) (PP (IN through) (NP (DT the) (JJ slow) (NNS spots))))))))
(ROOT (SBAR (IN ) (S (NP (PRP )) (VP (MD ) (VP (VB ) (PRT (RP )) (PP (IN ) (NP (DT ) (JJ ) (NNS ))))))))