गत — गम् + क्त, "gone" — is a participle: it declines exactly like a noun, because a कृदन्त is a प्रातिपदिक once the affix is on (see 16–17). Whatever noun it describes, it must match in all three features at once, not the ones that happen to be convenient:
| liṅga | प्रथमा एक. | प्रथमा द्वि. | प्रथमा बहु. | द्वितीया एक. |
|---|
Paired with real nouns from the course lexicon, in the cases those nouns actually need:
The boy went. (m., प्रथमा एक.)
The two boys went. (m., प्रथमा द्वि. — see below, the dual is not optional.)
The girl went. (f. — a different vibhakti-set entirely: -आ,-ए,-आः, not -अः,-औ,-आः.)
The teacher sees the boy who went. (accusative now, because गुरुः दृश्यति needs a direct object — and गत follows बालम् into द्वितीया, not just gender and number.)