Focus on the pronunciation of undertake
English definition of “undertake”
/ˌʌn·dərˈteɪk/ v (past tense undertook /ˌʌn·dərˈtʊk/, past participle undertaken /ˌʌn·dərˈteɪ·kən/)
› to take responsibility for and begin doing something: [T] The president directed the Department of Justice to undertake an investigation of the allegations. [+ to infinitive] I undertook to help him learn English.