Hold it as long as you can.
( ( ( Hold it ) ( ( as long ) ( as ( you can ) ) ) ) . )
(ROOT (S (VP (VB Hold) (NP (PRP it)) (ADVP (ADVP (RB as) (RB long)) (SBAR (IN as) (S (NP (PRP you)) (VP (MD can)))))) (. .)))
Try to hold on for a while, but if you need a break, you can take one and come back later.
( ( Try ( ( ( ( to ( ( hold on ) ( for ( a while ) ) ) ) , ) but ) ( if ( you ( need ( a break ) ) ) ) ) ) ( , ( you ( ( can ( ( ( take one ) and ) ( come ( back later ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VB Try) (SBAR (SBAR (S (VP (TO to) (VP (VB hold) (PRT (RP on)) (PP (IN for) (NP (DT a) (NN while))))))) (, ,) (CC but) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP need) (NP (DT a) (NN break)))))))) (, ,) (NP (PRP you)) (VP (MD can) (VP (VP (VB take) (NP (CD one))) (CC and) (VP (VB come) (ADVP (RB back) (RB later))))) (. .)))