When we make questions, we do like this;<br/><br/>Question word (WH question words)+ auxillery+ verb or Auxillery + verb+...<br/><br/>Ex: when did you come?<br/><br/>Does she write the letter?<br/><br/>But here is a question, Is it correct or not?<br/><br/>When it started to rain?<br/><br/>If it is correct what is the reason?<br/><br/>can we ask like this?<br/><br/>what happened to you?<br/><br/>Please clarify the structre and reasons.<br/><br/>Thanking you,<br/><br/>Ahemmed