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/
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