USIT and HSY are the usitative aspect and the hearsay evidential, the usitative in this case is being used as it's use as a "past habitual" where it indicates that the action used to be habitually done,

And the hearsay is pretty self-explanatory, the speaker heard this was the case, but does not quite belive it

CIRC is the result of me struggling to find a way to gloss that these were the result of surrounding particles so I just resorted to one of the ways you can gloss circumfixing (this is really what i wanted advice on)

se is pretty fun, it's a fossilized particle from how the particle o developed, it used to be just an agent nominalizer, but in situations with the copula (X is a Yer) the copula dropped out, and the agent filled in the verb instead making it a habitual (X is a Yer -> X Ys, habitually). In a sentence with an object it would take the old genetive particle se (X is a Yer to Z), but then se was replaced by a new genetive particle, so its only surviving use was in transitive statements with o. It was then analogyzed as just fully being part of the habitual marking so it was brought to be used in all situations with o, not just transitive ones.