About this time the Fasten Seatbelt sign would usually have been turned off and the flight attendants would have begun preparing for cabin service.
( ( About ( this time ) ) ( ( ( ( ( the ( Fasten ( Seatbelt sign ) ) ) ( ( would usually ) ( have ( been ( turned off ) ) ) ) ) and ) ( ( the ( flight attendants ) ) ( would ( have ( begun ( preparing ( for ( cabin service ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (RB About) (DT this) (NN time)) (S (NP (DT the) (NNP Fasten) (NNP Seatbelt) (NN sign)) (VP (MD would) (ADVP (RB usually)) (VP (VB have) (VP (VBN been) (VP (VBN turned) (PRT (RP off))))))) (CC and) (S (NP (DT the) (NN flight) (NNS attendants)) (VP (MD would) (VP (VB have) (VP (VBN begun) (S (VP (VBG preparing) (PP (IN for) (NP (NN cabin) (NN service))))))))) (. .)))
The Fasten Sealtbelt sign would have been turned on around this time as the flight attendants begun preparing for cabin service.
( ( The ( Fasten ( Sealtbelt sign ) ) ) ( ( would ( have ( been ( turned ( on ( around ( ( this time ) ( as ( ( the ( flight attendants ) ) ( begun ( preparing ( for ( cabin service ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Fasten) (NNP Sealtbelt) (NN sign)) (VP (MD would) (VP (VB have) (VP (VBN been) (VP (VBN turned) (PP (IN on) (IN around) (NP (NP (DT this) (NN time)) (PP (IN as) (NP (NP (DT the) (NN flight) (NNS attendants)) (VP (VBN begun) (S (VP (VBG preparing) (PP (IN for) (NP (NN cabin) (NN service)))))))))))))) (. .)))