TH commonly represents /θ/ as in think or /ð/ as in this. A few names and words use /t/.
Exemplos
think /θɪŋk/ · three /θriː/ · this /ðɪs/ · mother /ˈmʌðər/
Other pronunciations and limits
Thomas and thyme begin with /t/. · Thomas /t/ · thyme /t/
Example sentence
Three mothers think about this.