We wouldn't exist if the need weren't there.
( We ( ( ( would n't ) ( exist ( if ( ( the need ) ( ( were n't ) there ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (MD would) (RB n't) (VP (VB exist) (SBAR (IN if) (S (NP (DT the) (NN need)) (VP (VBD were) (RB n't) (ADVP (RB there))))))) (. .)))
Without us, many people would suffer unnecessarily.
( ( Without us ) ( , ( ( many people ) ( ( would ( suffer unnecessarily ) ) . ) ) ) )
(ROOT (S (PP (IN Without) (NP (PRP us))) (, ,) (NP (JJ many) (NNS people)) (VP (MD would) (VP (VB suffer) (ADVP (RB unnecessarily)))) (. .)))