Then he gave in.
( Then ( he ( ( gave in ) . ) ) )
(ROOT (S (RB Then) (NP (PRP he)) (VP (VBD gave) (PRT (RP in))) (. .)))
He would not give in.
( He ( ( ( would not ) ( give in ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (MD would) (RB not) (VP (VB give) (PRT (RP in)))) (. .)))