Con is probably the right term, as it means to deceive.
tale
lie
Con, gyp, lie.
I've is a word that means I have. I'll is a word that means I will.
A 3-letter word that means "which person" is "who."
and
but
Ado.
Lie, as in, "The trail lies to the west" or "The fault lies here" or "The real remedy lies in education."
Let
fan
hue