I will argue that new Future Perfect constructions based on past tense forms (pa’al) are now emerging in Hebrew and address two research questions:
The Future Resultative employs pa’al to denote a future state ensuing from a previous action. xasaxta in (1) conveys the future state of having saved 300 shekels (due to a future purchase). By contrast, Hebrew’s future tense (2) denotes a future event without a resultative construal:
DEF-price at-1.PL 900 save.PST.2.SG.M 300
‘Our price: 900. Your saving will be: 300’
meet.FUT.1.PL tomorrow
‘We will meet tomorrow’
The Military Imperative consists of second person pa’al and a temporal upper-bound. It requires that the addressee shall be in a future state of already having executed the request (3), unlike the traditional imperative mood (4), which merely asserts the request:
minute encircle.PST.2.PL.M ACC.DEF-camp
‘Be in a state of having run around the camp in a minute!’
encircle.IMPERATIVE.2.PL ACC.DEF-camp
‘Run around the camp!’
I argue that the above constructions are manifestations of an emerging Future Perfect since they maintain the semantic relation E-R & S-R (Reichenbach 1947). The ensuing future state serves as the point of reference R from which the event E is viewed. The choice of pa’al is motivated as well: it reflects the anteriority of E to R iconically.