It's been several decades since I waded or trudged through 'Being and Time', in English unfortunately. I'm glad I made the effort but I'm certain I left much 'on the table'.

I also read Husserl but remember even less.

My shallow exposure to linguistics occurred well after my philosophy forays. I appreciate your comments on how various cultures' treatment of the 'verb to be' reflects their perspectives on the nature of existence and experience.

What I retain, or misinterpret, about Heidegger is the portrayal of Dasein as a 'level of being' primary, formative and inaccessible to consciousness.

His treatment of 'time', as I recall, was incomplete, but I found it incomprehensible. Students of philosophy should minor in German.