▲ 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