"I want to be" sounds "I'll be" to me. Could you explain the pronunciation?

Native speaker’s answer
Rebecca
Please note that while the script says "I want to be", the speaker is actually saying "I wanna be". In terms of pronunciation it sounds more like "uhwanna" with the "I", "want" and "to" merging into each other. Most speakers in the U.S. regularly pronounce "want to" as "wanna" and "going to" as "gonna". You will rarely hear anybody carefully pronounce "want" and "to" in this situation. Ex: That's gonna hurt. Ex: They don't wanna go.