`1`/ is not used to gettinf ( S + to be + used to + v ING )
`2`/ were they doing / saw ( S + was / were + v ing + when + S+V ɪɪ )
`3`/ are not let to swim ( children + are ; let + to + v inf )
`4`/ should not eat ( s + should(not) + v inf + O )
`5`/ have they lived ( hiện tại hoàn thành Have / has + S + Vɪɪɪ + O )