The verb "leave" is an irregular verb in English, commonly used to describe the action of going away from a place or situation. Its conjugation deviates from the regular pattern.

In the present simple tense, "leave" follows its base form for most subjects: "I leave," "you leave," "he/she/it leaves," and so forth. For example, "She leaves for work at 8 AM."

In the past simple tense, "leave" changes to "left." This irregular form is used to talk about actions of departing that were completed in the past. For instance, "He left the party early."

The past participle of "leave" is also "left." When forming perfect tenses, such as the present perfect or past perfect, the past participle is combined with auxiliary verbs. An example sentence is "They have left the city for a quieter life in the countryside."

"Leave" is often used as a transitive verb, meaning it requires a direct object to complete its meaning: "She left the keys on the table." However, it can also be used intransitively: "He left without saying goodbye."

The verb "leave" is also used in various idiomatic expressions and phrasal verbs, such as "leave out" (to omit), "leave behind" (to abandon), and "leave off" (to stop doing something).

Understanding the irregular conjugation of "leave" is crucial for accurately describing actions related to departure or omission. Its presence in many idiomatic expressions adds to its versatility in the English language.