1: βούλομαι
(Strong's #1014 — Verb — boulomai — boo'-lom-ahee )

"to will, wish, desire, purpose" (expressing a fixed resolve, the deliberate exercise of volition), is translated "intend" in Acts 5:28 , and "intending" in Acts 12:4 . See DESIRE.

2: θέλω
(Strong's #2309 — Verb — thelo — )

"to will, be willing, desire" (less strong, and more frequent than No. 1), is translated "intending" in Luke 14:28 , AV (RV, "desiring"). See DESIRE.

3: μέλλω
(Strong's #3195 — Verb — mello — mel'-lo )

"to be about to do a thing," indicating simply the formation of a design, is translated "intend" in Acts 5:35 , AV (RV, "are about"); "intending," in Acts 20:7 , RV (AV, "ready"); Acts 20:13 (1st part); in the 2nd part of the ver., RV, "intending" (AV, "minding").