How old would you say you were when your cousins were doing this reading?
( ( How old ) ( ( ( would you ) ( say ( you ( were ( when ( ( your cousins ) ( were ( doing ( this reading ) ) ) ) ) ) ) ) ) ? ) )
(ROOT (SBARQ (WHADJP (WRB How) (JJ old)) (SQ (MD would) (NP (PRP you)) (VP (VB say) (SBAR (S (NP (PRP you)) (VP (VBD were) (SBAR (WHADVP (WRB when)) (S (NP (PRP$ your) (NNS cousins)) (VP (VBD were) (VP (VBG doing) (NP (DT this) (NN reading))))))))))) (. ?)))
Were you old enough to remember the details of the reading? 
( ( ( Were you ) ( ( ( old enough ) ( to ( remember ( the details ) ) ) ) ( of ( the reading ) ) ) ) ? )
(ROOT (SQ (VBD Were) (NP (PRP you)) (VP (ADJP (JJ old) (RB enough) (S (VP (TO to) (VP (VB remember) (NP (DT the) (NNS details)))))) (PP (IN of) (NP (DT the) (NN reading)))) (. ?)))