just never gets off the ground . 
(ROOT (S (ADVP (RB just)) (ADVP (RB never)) (VP (VBZ gets) (PP (IN off) (NP (DT the) (NN ground)))) (. .)))
(ROOT (S (ADVP (RB )) (ADVP (RB )) (VP (VBZ ) (PP (IN ) (NP (DT ) (NN )))) (. )))