( Gases ( ( ( have ( neither ( definite shape ) ) ) ( not ( definite volume ) ) ) . ) )
(ROOT (S (NP (NNS Gases)) (VP (VBP have) (NP (DT neither) (JJ definite) (NN shape)) (PP (RB not) (NP (JJ definite) (NN volume)))) (. .)))
Gases have neither definite shape not definite volume.
(ROOT (S (NP (NNP Gas)) (VP (VBZ has) (NP (NP (DT no) (JJ definite) (NN volume)) (CC and) (NP (DT no) (JJ definite) (NN shape)))) (. .)))
Gas has no definite volume and no definite shape.