What kind of part of speech is the word "wishing" in the phrase?

[Suthipong]

1. In a phrase "Wishing you good health": What kind of part of speech is the word "wishing?
2. In "Loving you so much": What kind of part of speech is the word "Loving"?

 

[MikeNewYork]

1. In a phrase "Wishing you good health": What kind of part of speech is the word "wishing?
2. In "Loving you so much": What kind of part of speech is the word "Loving"?

It is difficult to analyze parts of speech in a phrase. Other words that would make these phrases into sentences have an effect on the part of speech. Can you put them into complete sentences?