Here is a list of irregular verbs beginning with B.
| Base Form | Past Form | Past Participle |
| backslide | backslid | backslid |
| be | was | been |
| were | been |
| bear | bore | borne |
| bear (give birth to) | bore | born |
| beat | beat | beaten |
| become | became | become |
| befall | befell | befallen |
| begin | began | begun |
| bend | bent | bent |
| bereave | bereft | bereft |
| bereaved | bereaved |
| beseech | besought | besought |
| beseeched | beseeched |
| beset | beset | beset |
| bespeak | bespoke | bespoken |
| bet | bet | bet |
| betted | betted |
| bid (offer money) | bid | bid |
| bid (order) | bade | bidden |
| bind | bound | bound |
| bite | bit | bitten |
| bit | bit |
| bleed | bled | bled |
| blend | blent | blent |
| blended | blended |
| bless | blest | blest |
| blessed | blessed |
| blow | blew | blown |
| break | broke | broken |
| breed | bred | bred |
| bring | brought | brought |
| broadcast | broadcast | broadcast |
| broadcasted | broadcasted |
| build | built | built |
| burn | burnt | burnt |
| burned | burned |
| burst | burst | burst |
| buy | bought | bought |