There are two ways of spelling this world. The British spell it Behove, while the Americans spell it Behoove. No matter how you spell the world. It is pronounced the same way. The first e is like the I in bit, kit and Sit. The following o is like the o in go, so and no. The final e is silent and the stress is on the second syllable. The word sounds like behoove and it is mostly used in rather formal contexts. Behoove Means Appropriate or necessary. If it behooves you to do something, it is necessary for you to do it.
Here is an example.
• Remember, you are under oath. It behooves you to tell the truth.