This root does not have any special conjugation properties.
Singular
Plural
Absolute State
שְׁלֹשָׁה ~ שלושה
shlosha
three m.
שָׁלֹשׁ ~ שלוש
shalosh
three f.
Conjugate State
שְׁלֹשֶׁת ~ שלושת
shloshet
(the) three m. of
שְׁלֹשׁ ~ שלוש
shlosh
(the) three f. of
Masculine
Feminine
Person
שְׁלָשְׁתֵּנוּ ~ שלושתנו
shloshtenu
the three of us
שְׁלָשְׁתְּכֶם ~ שלושתכם
shloshtechem
the three of you m. pl.
שְׁלָשְׁתְּכֶן ~ שלושתכן
shloshtechen
the three of you f. pl.
שְׁלָשְׁתָּם ~ שלושתם
shloshtam
the three of them m.
שְׁלָשְׁתָּן ~ שלושתן
shloshtan
the three of them f.
1st Person
שְׁלָשְׁתֵּנוּ ~ שלושתנו
shloshtenu
the three of us
2nd Person
Masculine
שְׁלָשְׁתְּכֶם ~ שלושתכם
shloshtechem
the three of you m. pl.
Feminine
שְׁלָשְׁתְּכֶן ~ שלושתכן
shloshtechen
the three of you f. pl.
3rd Person
Masculine
שְׁלָשְׁתָּם ~ שלושתם
shloshtam
the three of them m.
Feminine
שְׁלָשְׁתָּן ~ שלושתן
shloshtan
the three of them f.