Wouldn't is the contracted form of 'would not,' used to express a negative possibility, refusal, or hypothetical statement. In everyday speech it commonly reduces to /ˈwʊdnt/ or /ˈwʊdn̩t/, with the 'l' sound silent and the final consonant blending toward a quick 'nt' cluster. It functions across tense and mood and is frequent in informal registers.
Full pronunciation guide
