ὑπόχρεώς ἐιμι = I am in debt.= I am a debtor
ὑπόχρεως ἑγενόμην = I became a debtor= I became in debt
To amplify Mattk’s explanation:
look at p 377 of the reference grammar (ii) Enclitics specifically:
(b) If the preceding word has an acute on the third last syllable, or a circumflex on the second last, that word will take as well as its normal accent an acute on its last syllable, e.g.
ἄνθρωπός τις
πλοῖόν τι
There is more detail there and of course in Probert para 278-300 in particular 284-289.
All new to me. Have I understood correctly?
properispomenon word + enclitic – an acute is added to the ultima of the preceding word, e.g. οἶκός τις - δῶρόν τε - ετϲ. (CGCG 24.38).
I could have sworn I posted this earlier - but it’s disappeared.
Anyway, many thanks to seneca for expanding further on this topic. Lots to take in!!