| surseoir | sursoyant /syʁ.swa.jɑ̃/ | sursis /syʁ.si/ |
| surveiller | surveillant /syʁ.vɛ.jɑ̃/ | surveillé /syʁ.vɛ.je/ |
| survenir | survenant /syʁ.və.nɑ̃/ | survenu /syʁ.və.ny/ |
| survivre | survivant /syʁ.vi.vɑ̃/ | survécu /syʁ.ve.ky/ |
| survoler | survolant /syʁ.vɔ.lɑ̃/ | survolé /syʁ.vɔ.le/ |
| susciter | suscitant /sy.si.tɑ̃/ | suscité /sy.si.te/ |
| suspecter | suspectant /sys.pɛk.tɑ̃/ | suspecté /sys.pɛk.te/ |
| suspendre | suspendant /sys.pɑ̃.dɑ̃/ | suspendu /sys.pɑ̃.dy/ |
| sustenter | sustentant | sustenté |
| susurrer | susurrant /sy.sy.ʁɑ̃/ | susurré /sy.sy.ʁe/ |
| syllaber | syllabant | syllabé |
| symboliser | symbolisant /sɛ̃.bɔ.li.zɑ̃/ | symbolisé /sɛ̃.bɔ.li.ze/ |
| sympathiser | sympathisant /sɛ̃.pa.ti.zɑ̃/ | sympathisé /sɛ̃.pa.ti.ze/ |
| synchroniser | synchronisant /sɛ̃.kʁɔ.ni.zɑ̃/ | synchronisé /sɛ̃.kʁɔ.ni.ze/ |
| syncoper | syncopant /sɛ̃.kɔ.pɑ̃/ | syncopé /sɛ̃.kɔ.pe/ |
| syndicaliser | syndicalisant /sɛ̃.di.ka.li.zɑ̃/ | syndicalisé /sɛ̃.di.ka.li.ze/ |
| syndiquer | syndiquant /sɛ̃.di.kɑ̃/ | syndiqué /sɛ̃.di.ke/ |
| synthétiser | synthétisant /sɛ̃.te.ti.zɑ̃/ | synthétisé /sɛ̃.te.ti.ze/ |
| systématiser | systématisant /sis.te.ma.ti.zɑ̃/ | systématisé /sis.te.ma.ti.ze/ |
| sécher | séchant /se.ʃɑ̃/ | séché /se.ʃe/ |