The plural of behalf is the noun behalves
Behalves is only used to accompany a plural word.
For example: "I can call on their behalves"
Depends on what your talkin about but usally onbehave
You use on your behalf when you are representing me and in your behalf when you do not want to put a lot of emphasis on what you are saying.
in behalf of is incorrect usage (Delete me if I am worng)
A behalf is an advantage or favour, to do something on someone else's behalf is to do it in order to someway assist them.
It should be: Ms. Martinez' behalf or Mr. Martinez's behalf
On Behalf of the Streets was created in 2006.
I spoke to the company on behalf of my colleague who was unable to attend the meeting.
"On behalf of my friend, I would like to apologize."
Usually, the phrase is simply "on behalf of", without "the".
If someone is not available to speak for themselves, a person might say "on the behalf of *so and so* I would like to thank you...", or "on the behalf of *so and so* I am informing you...", or "on the behalf of *so and so* I am requesting...".
If someone is not available to speak for themselves, a person might say "on the behalf of *so and so* I would like to thank you...", or "on the behalf of *so and so* I am informing you...", or "on the behalf of *so and so* I am requesting...".
The term 'on behalf' is a prepositional phrase; the noun 'behalf' is the object of the preposition 'on'.The noun 'behalf' is a word for the benefit or the interest of; a word for a thing.A pronoun is a word that takes the place of a noun in a sentence.