The verb "bleed" is an irregular verb in English, often associated with the action of losing blood, but also used metaphorically to describe other forms of loss or depletion. Like many irregular verbs, "bleed" follows its unique conjugation pattern, particularly in its past simple and past participle forms. In the present simple tense, "bleed" maintains its base form for all subjects: "I bleed," "you bleed," "he/she/it bleeds," and so forth. For example, "His nose bleeds frequently due to dry air."

The past simple tense of "bleed" is "bled." This irregular form is used to narrate past actions involving the loss of blood or metaphorical loss. For instance, "The wound bled profusely before it was properly treated."

Similarly, the past participle of "bleed" is also "bled." When forming perfect tenses, such as present perfect or past perfect, the past participle is combined with auxiliary verbs. An example sentence is "She has bled on her shirt from the cut on her finger.".