'चोर भाग गया जब उसने हमें देखा।' वाक्य का सही अंग्रेजी रूपांतरण होगा-

The thief run away when he saw us.

The thief ran away then he saw us.

The thief ran away when he see us.

The thief ran away when he saw us.

इनमें से कोई नहीं