If you had said in the Daita forest 'O king, I won't be able to kill Karna, we would have in time, O Partha, made some befitting arrangements.
इदं यदि द्वैतवनेऽप्यचक्षः कर्णं योद्धं न प्रशक्ष्ये नृपेति। वयं ततः प्राप्तकालं च सर्वे कृत्यान्युपैष्याम तथैव पार्थ॥