And the affix laṅ (Imperfect Tense) comes after the verb when the particles ha and śaśvata are in connection with it and when the verb denotes past action unperceived by the speaker and before the commencement of the current day.,
The force of च 'and' is that the affix लिट् (perfect) may also be employed in similar construction. As इति हाकरोत् (imperfect), or इति ह चकार (perfect) 'Alas ! he did it'. शश्वदकरोत् or शश्वच्चकार 'again and again he did it'.,