com·bustBrE/kəmˈbʌst/NAmE/kəmˈbʌst/verbpresent simple - I / you / we / theycombustBrE/kəmˈbʌst/NAmE/kəmˈbʌst/present simple - he / she / itcombustsBrE/kəmˈbʌsts/NAmE/kəmˈbʌsts/past simplecombustedBrE/kəmˈbʌstɪd/NAmE/kəmˈbʌstɪd/past participlecombustedBrE/kəmˈbʌstɪd/NAmE/kəmˈbʌstɪd/ -ing formcombustingBrE/kəmˈbʌstɪŋ/NAmE/kəmˈbʌstɪŋ/[I, T]~ (sth)tostarttoburn; tostarttoburnsth开始燃烧；开始烧