Taḥāmatnī is feminine singular past because its subject al-ʿashīrah is grammatically feminine; the suffix -nī is its first-person object. Kulluhā emphasizes the whole clan. Ufridtu is first-person singular passive past of form IV: “I was isolated.”
Ifrād al-baʿīr is a cognate accusative expression describing the manner of separation, comparable to a verbal noun used as an absolute object. The first clause names the avoiding collective; the passive second clause foregrounds what happened to the speaker.