Similarities and differences between two exclamative sentences of Brazilian Portuguese

In a descriptive side, this paper aims to observe the syntactic-semantic pattern of two exclamative structures under-researched of Brazilian Portuguese and, through some diagnostics, verify the differences and similarities between them. In a theoretic side, taking into account the results of these tests, we verify how this structures are derived, adopting as conceptual framework the Generative Grammar, in Minimalist Program model (CHOMSKY, 2001 and henceforth). Then, after presentation, discussion, and theoretical analysis of data of these exclamative structures, we attest that they have distinct structures: while one behaves like a Tense Phrase (TP) the other behaves like a Complementizer Phrase (CP).