Перевод: Я часто работаю переводчиком с иностранными делегациями,но никогда не пробовал делать письменные переводы

Я часто работаю переводчиком с иностранными делегациями, но никогда не пробовал делать письменные переводы. — I often work as an interpreter with foreign delegations, but have never tried to do written translations.

I don’t often work as an interpreter with foreign delegations, but have never tried to do written translations.

Do I often work as an interpreter with foreign delegations, but have never tried to do written translations?

Who often works as an interpreter with foreign delegations, but has never tried to do written translations?

I often work as an interpreter with foreign delegations, but have never tried to do written translations, do not I?