for quite some time now, I am wondering as to the extent one must use the {qaStaHvIS}.

my understanding is, that if we are talking about an event which takes place once, there is no need for {qaStaHvIS}.

example:

DaSjaj matlheD

(on) monday we depart

on the other hand, if we talk of an event that lasts quite some time, then the qaStaHvIS is (seemingly) required.

example:

qaStaHvIS DaSjaj jIvum

while monday is happening I work

so, here is my first question: in the aforementioned example {qaStaHvIS DaSjaj jIvum}, is the {qaStaHvIS} necessary ? can't I just write {DaSjaj jIvum} ?

maj..

moving on, my next question is "if we are talking of singular events which take place multiple times, do we use the {qaStaHvIS} ?"

example:

on monday I kill four birds

do I write

{DaSjaj loS bo'Degh vIHoH}

or do I write

{qaStaHvIS DaSjaj loS bo'Degh vIHoH}

qunnoH jan puqloD
ghoghwIj HablI'vo' vIngeHta'
SuvwI'pu'qoq Hol tughojmoHta'mo' Satlho'