ei (Greek #1487)
if, whether, that, etc.
KJV usage: forasmuch as, if, that, (al-)though, whether. Often used in connection or composition with other particles, especially as in 1489, 1490, 1499, 1508, 1509, 1512, 1513, 1536, 1537. See also 1437.
Pronounce: i
Origin: a primary particle of conditionality
gar (Greek #1063)
properly, assigning a reason (used in argument, explanation or intensification; often with other particles)
KJV usage: and, as, because (that), but, even, for, indeed, no doubt, seeing, then, therefore, verily, what, why, yet.
Pronounce: gar
Origin: a primary particle