'I saw him get aboard myself.
( ' ( I ( ( saw ( him ( get ( aboard myself ) ) ) ) . ) ) )
(ROOT (S ('' ') (NP (PRP I)) (VP (VBD saw) (SBAR (S (NP (PRP him)) (VP (VBP get) (PP (IN aboard) (NP (PRP myself))))))) (. .)))
I watched him get on the train at 7pm
( I ( watched ( him ( get ( on ( ( the train ) ( at 7pm ) ) ) ) ) ) )
(ROOT (S (NP (PRP I)) (VP (VBD watched) (SBAR (S (NP (PRP him)) (VP (VBP get) (PP (IN on) (NP (NP (DT the) (NN train)) (PP (IN at) (NP (CD 7pm)))))))))))