Speak English correctly. Embedded questions. Do not say, I don't know who is she. Say instead, I don't know who she is. Do not say, ask him what is his name. Say instead, ask him what his name is. Do not say, can you tell me what time is it? Say instead, can you tell me what time it is? Do not say, I wonder why did he do it. Say instead, I wonder why he did it. Do not say, she told us where did she go. Say instead, she told us where she went. To learn more about this topic, see video at link. Or check out our website for more free English learning resources. ESLgold.com and freeenglishstudy.com