Present perfect or continuous

Question

سلام

در جمله زیر نمی شه هم Present perfect و هم  Present perfect continuous رو قرار داد؟

How long

(you/know) Simon?

متشکرم

Answer 1

How long have you known Simon? √

How long have you been knowing Simon? ×

The second question is frowned upon by grammarians although some regional form of English might allow it. It's not usual for mental-state verbs to be used in progressive tenses, so one might argue as 'Are you knowing Simon' sounds weird, so does 'Have you been knowing Simon?'

Comments

کاملا حق با شماست.

متشکرم