This descriptive-analytic research probing the findings of Traugatt (1978). Margolies & Crawford (2008). Lee & Ji (2014). and Duffy & Evans (2016) was conducted to investigate how Persian students use "time lines" of "tense" and "sequencing". https://www.alarecre.com/Virescent-Harmony-Galaxy-A14-5G-Clear-Case-p106336/