He became even more concerned as its route changed, moving into another sector's airspace.
( He ( ( ( became ( even ( more concerned ) ) ) ( as ( ( its route ) ( ( changed , ) ( moving ( into ( ( another ( sector 's ) ) airspace ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD became) (ADJP (RB even) (RBR more) (JJ concerned)) (SBAR (IN as) (S (NP (PRP$ its) (NN route)) (VP (VBD changed) (, ,) (S (VP (VBG moving) (PP (IN into) (NP (NP (DT another) (NN sector) (POS 's)) (NN airspace))))))))) (. .)))
The plane never should have gone that way. 
( ( The plane ) ( never ( ( should ( have ( gone ( that way ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN plane)) (ADVP (RB never)) (VP (MD should) (VP (VB have) (VP (VBN gone) (NP (DT that) (NN way))))) (. .)))