Yup, same here. I prefer writing in English and speaking in Malay. I probably can't write decently in Malay even if I wanted to. Casual conversation is a mix of both, depending on who I am speaking to, but it's still mostly Malay + Manglish (Malaysian English with all its "lah"s and "maa"s and nonsensical word combinations). Presentations, hmm. English maybe. I don't have enough words in Malay to make me sound like I know what I'm doing. XD