languages, where ast could have two variants (cf. Avestan which has both as- and has- <PIE *h1es- ‘be’). In the next phase, what we may call a pseudo-verb appeared, vis. the verb hastan (to exist) has been analogically evolved from hast (exists) and has been conjugated like any other Persian verb (e.g. hast-am = literally: *‘(I) am existence’→ ‘I exist’). The simple past conjugation of the verb būdan (to be) is in fact formed by a double-copula, in the sense that both the stem and the ending are copulas: the past stem of the verb būd- is derived from PIE *bhuH-, while the endings are from the suppletive form of PIE *h1es- (to be) with the exception of 3rd person singular which has zero ending for the all Persian verbs in the past tense. The present perfect conjugation of the verb būdan (to be) is a double copula paradigm as it is produced by addition of all enclitic copulas to the past participle of the verb: būde (been). The pseudo-verb hastan (to exist) has only simple present tense; in addition, it is truly and purely existencial only in the case of third person singular (hast). The fact is that the verb has been the product of this very case, as an "existential is", hast (he/she/it exists). For other persons the conjugation has to use enclitic copulas. These copulas are, in turn, derived from the declension of PIE *h1es- (to be); as if the predicative "to be" has been an auxiliary verb turned into enclitic, to provide six endings for 1st/2nd/3rd person (singular & plural). However, as it is said, the 3rd person singular has no ending in the case of hastan. That is to say that the existential hast (exists), which is like the alter-ego of the copula ast (is), takes no ending, while the present stem of all other verbs take an archaic ending -ad in their 3rd person singular. Hellenic languages Greek The Ancient Greek verb eimi (I am) is derived from the Indo-European root *. Dual is not shown in the table. The participles are based on the full-grade stem ἐσ- in Homeric, according to Smyth. Italic languages Except for Latin, the older Italic languages are very scarcely attested, but we have in Oscan set (they are), fiiet (they become), fufans (they have been) and fust (he will be), and in Umbrian sent (they are). This section