אתה אח ברוך הבא
I believe this is how you would write it according to Google Translate but I can't read it aloud... luckily, so many people learn Hebrew for religion that a pronunciation key is not hard to find on-line (it's read from right to left). Most christian pastors who attended a seminary had to learn the Ancient Hebrew and some form of Ancient Greek in their studies because The Bible is written in Hebrew (Old Testament) and Greek (New Testament)
My father knows the old Hebrew but I don't know if he could tell you how they say it now in Israel
"What if your Welcome" cannot be translated into Hebrew, because "your welcome" in Hebrew is literally "blessed is he/she who comes" You can say, "what if it happens that you are permitted to enter" = ma yikreh im mutar lekha/lakh lehikanes.
welcome in Hebrew is "baroch haba" or "shalom" or "brocim habaim"
brukhim haba'im le'amritsar
sister and brother = achot veh ach (×חות ו××—)
ha'ah hanotzri sheli
atah akhi? (אתה אחי)
"Brother of" and "brother" are written and pronounced the same: ach (אח) (ch is a gutteral sound)
Baruch Haba Le'olami - ברוך הבא לעולמי
You say, "Bendiciones, hermano."
Bienvenido, hermanote / carnalote
my big brother = achí ha gadól (אחי הגדול)
Well, honey, in Hebrew, you say "mama" by pronouncing it as "ima." It's as simple as that. So, go ahead and impress your friends with your newfound linguistic skills. You're welcome.