vav-conversive
A vav-conversive (also called a “vav-consecutive” or "waw-consecutive") is a conjunction. more
The key point to remember is that a vav-conversive converts a prefix form from future tense to past tense (these forms are often called a “preterite”). The following rules are also helpful:
It is only ever added to the prefix form form of the verb.
The dagesh from the vav-conversive will never appear in the first letter of the verb.
A vav-conversive will shorten a verb every chance it gets (KHW 32.3a). See the third-ה paradigm for an example (KHW p. 448).
See also vav-reversive.
Keyword(s):
vav conversives
vav-reversive
A vav-reversive is much like a vav-conversive. Some grammars call both of these vav or waw-consecutives. Whenever you have:
an affix verb form,
with a vav-conjunction, and
it is the first word of the clause;
then this verb is reversed in much the same way as a vav-conversive “converts” a prefix form. It reverses the affix form of the verb from past tense, to future tense. cf. KHW 8.1d or page 7 here or this video.
Keyword(s):
vav-reversives