单三 过去式 过去分词 现在分词

afford -affords-afforded-afforded-affording; arrive-arrives-arrived-arrived-arriving; ask-askes-asked-asked-asking; act-acts-acted-acted-acting; add-adds-added-added-adding; allow-allows-allowed-allowed-allowing;annoy-annoys-annoyed-annoyed-annoying; argue-argues-agrued-agrued-arguing; achieve-achieves-achieved-achieved-achieving; appear-appears-appeared-appeared-appearing;appreciate-appreciates-appreciated-appreciated-appreciating;aim-aims-aimed-aimed;aiming;announce-announces-announced-announced-announcing;attempt-attempts-attempted-attempted-attempting;attract-attracts-attracted-attracted-attracting; brush-brushes-brushed-brushed-brushing;believe-believes-believed-believed-believing;beat-beats-beated-beaten-beating;become-becomes-became-become-becoming;boil-boils-boiled-boiled-boiling;bear-bears-bore-borne-bearing;borrow-borrows-borrowed-borrowed-borrowing;build-builds-built-built-building;bake-bakes-baked-baked-baking;behave-behaves-behaved-behaved-behaving;bet-bets-bet-bet-betting;bark-barks-barked-barked-barking;belong-belongs-belonged-belonged-belonging;bother-bothers-bothered-bothered-bothering;bow-bows-bowed-bowed-bowing;bite-bites-bit-bitten-biting;breed-breeds-bred-bred-breeding;break-breaks-broke-broken-breaking;burn-burns-burned-burnt-buring