Occasionally, he'd wince and apologise for any incoherence.
( Occasionally ( , ( he ( ( 'd ( ( ( wince and ) apologise ) ( for ( any incoherence ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Occasionally)) (, ,) (NP (PRP he)) (VP (MD 'd) (VP (VB wince) (CC and) (VB apologise) (PP (IN for) (NP (DT any) (NN incoherence))))) (. .)))
He continued to speak incoherently after apologizing.
( He ( ( continued ( to ( ( speak incoherently ) ( after apologizing ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD continued) (S (VP (TO to) (VP (VB speak) (ADVP (RB incoherently)) (PP (IN after) (NP (NN apologizing))))))) (. .)))