Stative inferential is used for state of affairs described by nominal predicates (names, adjectives, bor, yo'q, kerak, etc.),
and expresses that the knowledge of the fact is inferred from evidence,
be it sensorial perception, logical deduction or direct report from a trusted source.
That knowledge is most often presented as new information, sometimes unexpected, for the speaker himself.
The temporal distinction between a past and a present state of affairs is not marked grammatically,
the tense must be decided from the context.
The knowledge might be inferred from sensorial perception:
Anor juda shirin ekan.
The pomegranate is really sweet. (I did not expect it to be so sweet)
The knowledge might be inferred from logical deduction:
Qo'lidagi tangalarni sanab ko'rdi, yigirma tanga ekan.
He counted the money he had in his hand, that amounted to 20 tanga.
The knowledge might be obtained from a direct report from a trusted source:
Doktor aytdi, men sog' ekanman.
The doctor said that I am in a good health.
Kechirasiz, necha pul ekan?
Excuse me, which price did they say finally?
The state of affairs may have occurred in the past:
Siz kecha yo'q ekansiz.
(It seems) that you weren't there last night.
Do'konga kirdim, sut yo'q ekan.
I went into the shop, there wasn't any milk left.