- He built the treehouse all by himself._Hiː bɪlt ðə ˈtriː.haʊs ɔːl baɪ ˌhɪmˈself. Hi bilt zeu trihaous ol baï himsélf.Il a construit la cabane dans l'arbre tout seul.Hiː bɪlt ðə ˈtriː.haʊs ɔːl baɪ ˌhɪmˈself. Hi bilt zeu trihaous ol baï himsélf.
He built the treehouse all by himself.