| Infinitive | Participle | Gerund | Adjective |
|---|---|---|---|
| s | sed | sing | sable |
| saple | sapled | sapling | saplable |
| season | seasoned | seasoning | seasonable |
| shill | shilled | shilling | shillable |
| shipbuild | shipbuilt | shipbuilding | shipbuildable |
| sible | sibled | sibling | siblable |
| sightsee | sightseen | sightseeing | sightseeable |
| skill | skilled | Skilling, J. | skillable |
| sl | sled | sling | slable |
| snapshoot | snapshooting (or snappingshooting?) | snapshot (or snappedshot?) | snapshootable (or snappableshootable?) |
| soundbite | soundbitten | soundbiting | soundbitable |
| spr | spred | spring | sprable |
| st | sted | sting | stable |
| sta | staed | staing (qv. 'de Staing' in french) | stable |
| starle | starled | starling | starlable |
| sterle | sterled | sterling | sterlable |
| stirle | stirled | stirling | stirlable |
| stock | stocked | stockings | stockable |
| str | stred | string | strable |
| striple | stripled | stripling | striplable |
| sw | swed | swing | swable |
| syll | sylled | sylling | syllable |