mandarin tense question?

how do you state a continuous action? I know the following: Ta pai zhoapian means ‘he takes pictures’ Ta pai le zhaopian means ‘he took pictures’ how do I say ‘he’s taking pictures’ ? also, I’m confused over when to use ‘shi… de’ when talking about the past. Is that …

Which is more useful to learn as a healthcare worker, Chinese (Mandarin) or Japanese?

I like both cultures, though maybe Japanese a little more. Japanese also seems to sound "cooler". But I also want something that is practical for me as a healthcare worker. Which do you think is more useful in the United States? (And no need to rec commend Spanish, I’ve already …

6 year old cannot speak clearly or use proper sentences, is this a problem?

My cousin, who is six years old, cannot speak properly. I suspect this has to do with the fact he was brought up in a very confusing ‘language environment’. For instance, his mother speaks mandarin, his father speaks cantonese, and his environment speaks french. He cannot make proper sentences, or …