| 126758 | Saruga | pi | | | Z'graggen (1980) | no |
| 182455 | Sausi | y mo | | | Z'graggen (1980) | no |
| 75809 | Savosavo | ɰoma | | | Wegener (2011) | |
| 203007 | Setaman (Baktamin Dialect) | bɑ | | | Van Cott and Spencer (2010) | |
| 202870 | Setaman (Ngisokabip Dialect) | bɑ | | | Van Cott and Spencer (2010) | |
| 202748 | Setaman (Seltamin Dialect) | bɑ | | | Van Cott and Spencer (2010) | |
| 32204 | Siane | minamie | | | SIL (1987) | |
| 73592 | Siane | e'e | no | | Scott (1978) | |
| 199510 | Siawi | nabio | | | Conrad and Dye (1975) | |
| 126748 | Sihan | be:ʔi | | | Z'graggen (1980) | no |
| 222067 | Sikaritai | kad̚ | | | Clouse (1997) | |
| 194337 | Sileibi | mana | | | Z'graggen (1980) | no |
| 126765 | Silopi | pitu:k | | | Z'graggen (1980) | no |
| 260433 | Sinaugoro | ati + verb | | | Dutton (1970) | not (negative) |
| 182453 | Sinsauru | faʰ | | | Z'graggen (1980) | no |
| 182460 | Siroi | kwa | | | Z'graggen (1980) | no |
| 182466 | Sop | kono | | | Z'graggen (1980) | no |
| 182467 | Sumau | wɛ | | | Z'graggen (1980) | no |
| 246027 | Tabriak | kʰayak | | | SIL (1967) | |
| 245864 | Tabriak | kaya | | | SIL (1990) | |
| 73593 | Tairora, North | a'au | no | | Scott (1978) | |
| 31397 | Tairora, South | aʔáo | | | SIL (1976) | |
| 212160 | Tangko | diɾɔ wɑˈnɑndɔ | | | Hughes (2009) | |
| 218184 | Tauade | mui | | | SIL (1980) | |
| 222057 | Tause | kai | | | Clouse (1997) | |
| 222056 | Tause (Deirate Dialect) | kai | | | Clouse (1997) | |
| 194352 | Tauya | wɛa | | | Z'graggen (1980) | no |
| 197216 | Telefol | baes | no! | | Loughnane and Fedden (2011) | |
| 78719 | Tidore | ua | | | Pikkert et al (1994) | |
| 221160 | Tokano | oʔƀe | | | SIL (1965) | |
| 239229 | Tok Pisin | nogat | no | | Abbott (1985) | |
| 214980 | Tsaukambo | ˈbædæ | | | Hughes (2009) | |
| 260427 | Uare | mene + verb | | | Dutton (1970) | not (negative) |
| 217717 | Uare | 'mɛne | | | SIL (1988) | |
| 145491 | Ukuriguma | woyak | | | Z'graggen (1980) | no |
| 228825 | Ura | kʌku | | | SIL (1971) | |
| 228318 | Ura | kʌku | | | SIL (1970) | |
| 231666 | Ura | ɣaku | | | SIL (1975) | |
| 182468 | Urigina | kɛ | | | Z'graggen (1980) | no |
| 145486 | Usan | ue | | | Z'graggen (1980) | no |
| 194339 | Utarmbung | mbʌsimba | | | Z'graggen (1980) | no |
| 126766 | Utu | pi | | | Z'graggen (1980) | no |
| 126767 | Utu | kwituk | | | Z'graggen (1980) | no |
| 182470 | Uya | ʔah | | | Z'graggen (1980) | no |
| 216324 | Uyajitaya (Didiwala Dialect) | uwɑ | | | Rueck & Jore (2003) | |
| 217205 | Uyajitaya (Gisi Dialect) | uwɑ | | | Rueck & Jore (2003) | |
| 216204 | Uyajitaya (Palipa Dialect) | uwɑ | | | Rueck & Jore (2003) | |
| 216887 | Uyajitaya (Subalulu Dialect) | uwɑ | | | Rueck & Jore (2003) | |
| 217007 | Uyajitaya (Udibai Dialect) | uwɑ | | | Rueck & Jore (2003) | |
| 216084 | Uyajitaya (Uya Dialect) | uwɑ | | | Lambrecht et al. (2008) | |
