I can’t understand anything和I can’t understand everything

I can’t understand anything和I can’t understand everything i can't understand no i can't understand这是哪首歌? I can't understand _____. I can’t understand ________. 是I can't understand 还是I don't understand? I can't understand.I don't understand.I'm not understand,这三个 I can't understand English and I can't speak I can't understand ()she talked me 10.I can't understand _________. I can't understand spoken English . I can't understand ------（speak） English I can't understand ___(speak) English.