ÃŽÂÃŽÂ± is a participle (we call it molecule-ÃŽÂ¼ÃÅ’ÃÂÃŽÂ¹ÃŽÂ¿, in modern greek grammar) that usually suggests the subjunctive mood (ÃŽÂÃŽÂ±+indicative mood=subjunctive mood)
Also, can NÃŽÂ± with a conjugated verb following function as an infinitive in English would when for example taking the role of a direct object? To illustrate, 'I want to eat': Thelo na trowo, is it?
Pretty much, yes (in ancient Greek "Thelw na faw-ÃŽËœÃŽÂÃŽÂ»Ãâ€° ÃŽÂ½ÃŽÂ± Ãâ€ ÃŽÂ¬Ãâ€°", would have been "Thelw fagein-ÃŽËœÃŽÂÃŽÂ»Ãâ€° ÃŽÂ¦ÃŽÂ±ÃŽÂ³ÃŽÂµÃŽÂ¯ÃŽÂ½" or "Thelw Esthiein-ÃŽËœÃŽÂÃŽÂ»Ãâ€° EÃÆ’ÃŽÂ¸ÃŽÂ¯ÃŽÂµÃŽÂ¹ÃŽÂ½, which is a more poetic expression. This verb-ÃŽÂµÃÆ’ÃŽÂ¸ÃŽÂ¯Ãâ€°-plus the negative participle ne-ÃŽÂ½ÃŽÂ·, forms the word ÃŽÂ½ÃŽÂ·+ÃŽÂµÃÆ’ÃŽÂ¸ÃŽÂ¯Ãâ€°=ÃŽÂ½ÃŽÂ·ÃÆ’Ãâ€žÃŽÂµÃŽÂ¯ÃŽÂ± (fast)