There is no Hebrew word for am. Am depends on the sentence. For example:
I am hungry = Ani ra'ev (אני רעב)
I am 14 = Ani ben 14 (אני בן 14)
I am going = Ani holech (אני הולך)
Notes:
You say "Hachi tov be"
kol tuv (כל טוב)
I think you meant to say "the best IN the world". It is hatov ba'olam.
best of the best = הטוב ביותר (hah-TOHV beh-yo-TEHR)
The typical phrase is, "acharon, acharon chaviv" (last is the best)
You say 'Yalda' in Hebrew
yadua hatov beyoter (ידוע הטוב ביותר)
Has in Hebrew is: YESH
"Tikra" (תקרה) is how you say ceiling in Hebrew.
Ken and in Hebrew כן
"Boyfriend" in Hebrew is "khaver."
The word "My" in Hebrew is pronounced: "Sheli"