Beginning with his unsuccessful reconnoitring at Bournemouth, he passed on to his return to London, the buying of the car, the growing anxieties of Tuppence, the call upon Sir James, and the sensational occurrences of the previous night.
( ( Beginning ( with ( ( his ( unsuccessful reconnoitring ) ) ( at Bournemouth ) ) ) ) ( , ( he ( ( ( ( passed ( on ( to ( his return ) ) ) ) ( to ( ( ( London , ) ( ( the buying ) ( of ( the car ) ) ) ) , ) ) ) ( ( ( ( ( ( ( the ( growing anxieties ) ) ( of Tuppence ) ) , ) ( ( the call ) ( upon ( Sir James ) ) ) ) , ) and ) ( ( the ( sensational occurrences ) ) ( of ( the ( previous night ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (VBG Beginning) (PP (IN with) (NP (NP (PRP$ his) (JJ unsuccessful) (NN reconnoitring)) (PP (IN at) (NP (NNP Bournemouth)))))) (, ,) (NP (PRP he)) (VP (VBD passed) (PP (IN on) (PP (TO to) (NP (PRP$ his) (NN return)))) (PP (TO to) (NP (NP (NNP London)) (, ,) (NP (NP (DT the) (NN buying)) (PP (IN of) (NP (DT the) (NN car)))) (, ,))) (NP (NP (NP (DT the) (VBG growing) (NNS anxieties)) (PP (IN of) (NP (NNP Tuppence)))) (, ,) (NP (NP (DT the) (NN call)) (PP (IN upon) (NP (NNP Sir) (NNP James)))) (, ,) (CC and) (NP (NP (DT the) (JJ sensational) (NNS occurrences)) (PP (IN of) (NP (DT the) (JJ previous) (NN night)))))) (. .)))
He enjoyed being in London. 
( He ( ( enjoyed ( being ( in London ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD enjoyed) (S (VP (VBG being) (PP (IN in) (NP (NNP London)))))) (. .)))