A question for Hebrew speakers

[Masha]

I understand that it is appropriate to use the most terrible Hebrew curse ("may your name and memory is obliterated") towards those who wish for the destruction of Israel and the death of Jewish people. But I want to know how to inflect this curse correctly in case I need to use it. I hate using swear words, but sometimes you need a way to express your strong feelings towards those who hate Israel. I know it's Yimach Shmo Vezichro for "may his name and memory is obliterated," and I think it's Yimach Shema Verichra for "may her name and memory is obliterated," and Yimach Shmam Vezichram for "may their name and memory is obliterated." But how do you say "may your name and memory is obliterated," in other words, to a person's face (if need be)?

[Masha]

To a male:  Yemach shimcha ve-zechercha.

To a female:  Yemach shmech ve-zichrech.

Dan, thank you very much!  Did the other things I write look correct?

[Masha]

Oh, and how do you say "your" in plural, if you are addressing several people? Is it different if it's a mixed company of men and women you are addressing or only women or only men?

[Masha]

Dan it's very kind of you! Thank you. I'll try to memorize it now.