an (Greek #302)
a primary particle, denoting a supposition, wish, possibility or uncertainty
KJV usage: (what-, where-, wither-, who-)soever. Usually unexpressed except by the subjunctive or potential mood. Also contracted for 1437.
Pronounce: an
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