dental consonants can co-occur with sibilants; However, there are no Proto-Semitic verbal roots with ḍ and a sibilant, and roots with d and a sibilant are uncommon.
dˈɛntəl kˈɑːnsənənts kæn kˈoʊəkˈɜː wɪð sˈɪbɪlənts; haʊˈɛvɚ, ðɛɹˌɑːɹ nˈoʊ pɹˈoʊɾoʊsɛmˈɪɾɪk vˈɜːbəl ɹˈuːts wɪð lˌɛɾɚwˈʌnˈiːzˈiəɹoʊdˈiː ænd ɐ sˈɪbɪlənt, ænd ɹˈuːts wɪð dˈiː ænd ɐ sˈɪbɪlənt ɑːɹ ʌŋkˈɑːmən.