ืฉืืืืช Wh ืืขืืจ ืคืฉืื
When did she work? ยท What did you eat?
ืฉืืืืช Wh ืืขืืจ ืคืฉืื
โข ืืืื ื ืืฉืืื: ืืืืช ืฉืืื + did + ื ืืฉื + ืคืืขื ืืฆืืจืช ืืืกืืก
โข did ืืชืืื ืืื ืื ืืฉืืื (I / you / he / she / it / we / they)
โข ืืืจื did ืืคืืขื ืชืืื ืืฆืืจืช ืืืกืืก (ืืื -ed)
ืืฆืืจื ืืื ืืื ืื ืืฉืืื