Использовать present perfect или present perfect continuos с глаголами в скобках a: how long you (try) to find a job? b: for three years. it (be) really difficult. a: how many jobs you (have)? b: about thirty, maybe more i (do) everything. a: how long you (stand) here today? b: i (wait) since 8: 00 this morning, and i'm freezing.