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
tis (Greek #5101)
an interrogative pronoun, who, which or what (in direct or indirect questions)
KJV usage: every man, how (much), + no(-ne, thing), what (manner, thing), where (-by, -fore, -of, -unto, - with, -withal), whether, which, who(-m, -se), why.
Pronounce: tis
Origin: probably emphatic of 5100