I had, had put in several weeks that were between 60 and 90 hours a week.
( ( I had ) ( , ( ( ( had ( put ( in ( ( several weeks ) ( that ( were ( ( ( ( between 60 ) and ) 90 ) hours ) ) ) ) ) ) ) ( a week ) ) . ) ) )
(ROOT (SINV (S (NP (PRP I)) (VP (VBD had))) (, ,) (VP (VBD had) (VP (VBN put) (PP (IN in) (NP (NP (JJ several) (NNS weeks)) (SBAR (WHNP (WDT that)) (S (VP (VBD were) (NP (QP (IN between) (CD 60) (CC and) (CD 90)) (NNS hours))))))))) (NP (DT a) (NN week)) (. .)))
I worked 90 hours a week for three weeks in a row. 
( I ( ( ( ( worked ( 90 hours ) ) ( a week ) ) ( for ( ( three weeks ) ( in ( a row ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD worked) (NP (CD 90) (NNS hours)) (NP (DT a) (NN week)) (PP (IN for) (NP (NP (CD three) (NNS weeks)) (PP (IN in) (NP (DT a) (NN row)))))) (. .)))