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Post Verbal Subjects and Agreement in Brazilian Portuguese

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6. SUMMARY<br />

This thesis <strong>in</strong>troduced two BP patterns of verb agreement <strong>in</strong> BP (obligatory<br />

agreement <strong>and</strong> variant agreement).<br />

Adopt<strong>in</strong>g Moro’s (1993, 1997) analysis of copular sentences, I established<br />

that the variant pattern is restricted to cases of post-verbal subjects. As a<br />

consequence of this f<strong>in</strong>d<strong>in</strong>g, the BP pattern discussed here provides new data which<br />

serves as additional support for the proposals <strong>in</strong> Moro (1993, 1997)).<br />

I then proposed an analysis where the two-agreement pattern arises from the<br />

possibility of hav<strong>in</strong>g different elements <strong>in</strong> spec-TP: either a predicative null<br />

expletive (similar to English there), a clausal null expletive (similar to English it) or<br />

a predicate DP. In the case of unaccusatives <strong>and</strong> existentials, the two agreement<br />

patterns where proposed to be due to the possibility of rais<strong>in</strong>g either the predicate<br />

expletive or a clausal pronoun to spec-TP. Obligatory agreement occurs <strong>in</strong> pre-<br />

verbal subject environments, where the verb agrees with the subject when it raises<br />

to spec-TP.<br />

46

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