Sumimasen can mean;
1) Excuse me.
2) I'm sorry.
mean I`m sorry
"sumimasen, shitsurei shimasu" is a Japanese phrase and in English it means "Excuse me"
Sumimasen.
Gomennasai and Sumimasen can both mean "I'm Sorry" and in times when you want to say "Excuse me", it is usual to say Sumimasen... Another difference is, Sumimasen can mean Thank you....
"Sorry"(or "excuse me") is "sumimasen"
Sumimasen.
gome gomenasai gome ne sumimasen
Gomen (Ne) Gomen nasai Sumimasen
sumimasen = "pardon" or "pardon me"
su-mim-a-sen, so it's pretty simple to pronounce. Add a bit of an accent or stress on 'a'.
shitsure shimasen (lit. i am being rude) is excuse me, used for example if you enter a room or disturb someone. gomenasai is a word for sorry, also sumimasen.
gomen nasai Sumimasen. Even more polite, and for more serious offenses, "Moushi wake arimasen." ("There is no excuse.")
You can say すみません、日本語が分かりません (sumimasen, nihongo ga wakarimasen), which means "I'm sorry, I do not understand Japanese".