30 thirty /ˈθəːti/ 31 thirty-one /ˈθəːti wʌn/ 32 thirty-two /ˈθəːti tuː/ 33 thirty-three /ˈθəːti ˈθriː/ 34 thirty-four /ˈθəːti fɔː/ 35 thirty-five /ˈθəːti faiv/ 36 thirty-six /ˈθəːti sɪks/ 37 thirty-seven /ˈθəːti sevn/ 38 thirty-eight /ˈθəːti eit/ 39 thirty-nine /ˈθəːti nain/ 40 forty /ˈθɔːti/