za'i bu bu-letteral

pro-sumti: refers to the most recent sumti that started with a za'i-abstaction

See za'i. See also du'u bu, jei bu, ka bu, li'i bu, mu'e bu, ni bu, nu bu, pu'u bu, si'o bu, su'u bu, zu'o bu.

On affix form:

zasti
x1 exists/is real/actual/reality for x2 under metaphysics x3.

In notes:

du'u bu
the last sumti having a {du'u}-abstraction at its topmost level inside
jei bu
pro-sumti: refers to last complete sumti that started with a jei-abstraction
ka bu
the last sumti having a {ka}-abstraction at its topmost level inside
li'i bu
pro-sumti: refers to the last complete sumti that started with a li'i-abstraction
mu'e bu
pro-sumti: refers to the last complete sumti that started with a mu'e-abstraction
ni bu
the last sumti having a {ni}-abstraction at its topmost level inside
nu bu
pro-sumti: refers to the last complete sumti that started with a nu-abstraction
pu'u bu
pro-sumti: refers to the last complete sumti that started with a pu'u-abstraction
si'o bu
pro-sumti: refers to the last complete sumti with a si'o-abstration
su'u bu
pro-sumti: refers to the last complete sumti that started with a su'u-abstraction
zazyza'i
x1 is the existence of x2
zu'o bu
pro-sumti: refers to the last complete sumti that started with a zu'o abstraction