( ( Without ( the ( negative ( currency ( conversion impact ) ) ) ) ) ( , ( expenses ( ( would ( have ( decreased slightly ) ) ) . ) ) ) )
(ROOT (S (PP (IN Without) (NP (DT the) (JJ negative) (NN currency) (NN conversion) (NN impact))) (, ,) (NP (NNS expenses)) (VP (MD would) (VP (VB have) (VP (VBN decreased) (ADVP (RB slightly))))) (. .)))
Without the negative currency conversion impact, expenses would have decreased slightly.
(ROOT (S (NP (NP (NN Smoking) (NN tobaccowould)) (ADJP (RBS most) (JJ likely))) (VP (VBP have) (NP (NP (DT a) (JJ negative) (NN impact)) (PP (IN on) (NP (NP (DT the) (NN ability)) (PP (IN of) (NP (DT an) (ADJP (JJ individual) (S (VP (TO to) (VP (VB succeed) (PP (IN at) (NP (JJ physical) (NNS activities))) (SBAR (IN because) (S (NP (PRP it)) (NP (PRP it)))))))) (NNP decreases) (NN stamina) (CC and) (JJ cardiovascular) (NN efficiency))))))) (. .)))
Smoking tobaccowould  most likely have a negative impact on the ability of an individual to succeed at physical activities because it it decreases stamina and cardiovascular efficiency.