▲ set 安装：set, set
▲ sew 缝补：sewed, sewn / sewed
▲ shake 摇晃：shook, shaken
▲ shall 将：should, ―
▲ shave 刮脸：shaved, shaved / shaven
▲ shear 修剪：sheared, shorn / sheared
▲ shed 散发：shed, shed
▲ shine 照耀：shone / shined, shone / shined
▲ shoe 给（马）钉马蹄铁：shod / shoed, shod / shoed
▲ shoot 射击：shot, shot
▲ show 表明：showed, shown / showed
▲ shred 撕碎：shredded / shred, shredded / shred
▲ shrink 起皱：shrank / shrunk, shrunk / shrunken
▲ shrive 忏悔：shrove / shrived, shriven / shrived
▲ shut 关闭：shut, shut
▲ sing 唱歌：sang / sung, sung
▲ sink 下沉：sank / sunk, sunk / sunken
▲ sit 坐：sat, sat
▲ slay 残杀：slew, slain
▲ sleep 睡觉：slept, slept
▲ slide 滑动：slid, slid / slidden
▲ sling 悬挂：slung, slung
▲ slink 潜逃：slunk, slunk
▲ slit 切开：slit, slit
▲ smell 闻：smelt / smelled, smelt / smelled
▲ smite 重击：smote, smitten / smote
▲ sow 播种：sowed, sown / sowed
▲ speak 讲话：spoke, spoken
▲ speed 迅速前进：sped / speeded, sped / speeded
▲ spell 拼写：spelt / spelled, spelt / spelled
▲ spend 花费：spent, spent
▲ spill 溢出：spilt / spilled, spilt / spilled
▲ spin 旋转：spun, spun
▲ spit 吐：spat / spit, spat / spit
▲ split 劈开：split, split
▲ spoil 损坏：spoilt / spoiled, spoilt / spoiled
▲ spread 展开：spread, spread
▲ spring 弹跳：sprang / sprung, sprung
▲ stand 站立：stood, stood
▲ stave 凿孔：staved / stove, staved / stove
▲ steal 偷盗：stole, stolen
▲ stick 粘贴：stuck, stuck
▲ sting 刺激：stung, stung
▲ stink 发出恶臭：stank / stunk, stunk
▲ strew 散播：strewed, strewn / strewed
▲ stride 大踏步走：strode, stridden / strid
▲ strike 打动：struck, struck / stricken
▲ string 捆扎：strung, strung
▲ strive 努力：strove / strived, striven / strived
▲ swear 发誓：swore, sworn
▲ sweat 出汗：sweat / sweated, sweat / sweated
▲ sweep 打扫：swept, swept
▲ swell 鼓起：swelled, swollen / swelled
▲ swim 游泳：swam, swum
▲ swing 摆动：swung, swung
▲ take 拿到：took, taken
▲ teach 教：taught, taught
▲ tear 撕：tore, torn
▲ tell 告诉：told, told
▲ think 认为：thought, thought
▲ thrive 蔓延：throve / thrived, thriven / thrived
▲ throw 投掷：threw, thrown
▲ thrust 刺入：thrust, thrust
▲ tread 践踏：trod, trodden / trod
▲ unbend 放松：unbent, unbent
▲ unbind 解开：unbound, unbound
▲ unbuild 拆除：unbuilt, unbuilt
▲ underbid 出低价：underbid, underbidden / underbid
▲ underbuy 贱价买走：underbought, underbought
▲ undercut 廉价出售：undercut, undercut
▲ underdo 不尽力：underdid, underdone
▲ underfeed 喂不饱：underfed, underfed
▲ undergo 遭受：underwent, undergone
▲ underlay 铺垫：underlaid, underlaid
▲ underlet 低价出租：underlet, underlet
▲ underlie 位居其次：underlay, underlain
▲ underpay 克扣：underpaid, underpaid
▲ underrun 跑不过：underran, underrun
▲ undersell 抛售：undersold, undersold
▲ underset 暗流：underset, underset
▲ undershoot 进入射程：undershot, undershot
▲ understand 理解：understood, understood
▲ undertake 担任：undertook, undertaken
▲ underwrite 签名：underwrote, underwritten
▲ undo 取消：undid, undone
▲ undraw 拉开：undrew, undrawn
▲ unfreeze 解冻：unfroze, unfrozen
▲ ungird 解带：ungirded / ungirt, ungirded / ungirt
▲ unhang 解除悬挂：unhung, unhung
▲ unknit 拆开：unknitted / unknit, unknitted / unknit
▲ unlade 卸载：unladed, unladed / unladen
▲ unlay 松开：unlaid, unlaid
▲ unlearn 忘却：unlearnt / unlearned, unlearnt / unlearned
▲ unmake 恢复原状：unmade, unmade
▲ unreeve 抽出：unrove / unreeved, unrove / unreeved
▲ unsay 撤销：unsaid, unsaid
▲ unset 去除设定：unset, unset
▲ unsling 取去悬索：unslung, unslung
▲ unspeak 缄默：unspoke, unspoken
▲ unstick 扯开：unstuck, unstuck
▲ unstring 去掉绑扎：unstrung, unstrung
▲ unswear 毁弃誓言：unswore, unsworn
▲ unteach 使人忘却：untaught, untaught
▲ unthink 打消念头：unthought, unthought
▲ untread 折回：untrod, untrodden / untrod
▲ unweave 拆解：unwove, unwoven
▲ unwind 打开：unwound, unwound
▲ upbuild 在上面建：upbuilt, upbuilt
▲ upcast 上抛：upcast, upcast
▲ uphold 赞成：upheld, upheld
▲ uppercut 上击：uppercut, uppercut
▲ uprise 起义：uprose, uprisen
▲ upset 颠覆：upset, upset
▲ upsweep 向上弯曲：upswept, upswept
▲ upswing 跃进：upswung, upswung
▲ wake 唤醒：waked / woke, waked / woken / woke
▲ waylay 埋伏：waylaid, waylaid
▲ wear 穿，戴：wore, worn
▲ weave 编织：wove, woven
▲ wed 结婚：wedded / wed, wedded / wed
▲ weep 哭泣：wept, wept
▲ wet 弄湿：wetted / wet, wetted / wet
▲ will 意愿：would, ―
▲ win 获胜：won, won
▲ wind 缠绕：winded / wound, winded / wound
▲ wit 辩智：wist, wist
▲ withdraw 撤退：withdrew, withdrawn
▲ withhold 扣留：withheld, withheld
▲ withstand 对抗：withstood, withstood
▲ work 劳动wrought, wrought（但表示“工作”时为规则动词）
▲ wring 拧，搓：wrung, wrung
▲ write 写作：wrote, written