iook,过去式是什么

"look"的过去式是"looked"。在英语中，动词"look"表示看或寻找的动作。其过去式形式"looked"用于描述过去发生的动作或状态。例如：Yesterday, I looked at the photo.（昨天，我看了那张照片。）

The verb "look" refers to the act of directing one's attention towards something. It is commonly used to express the action of gazing, observing, or searching for something.

Tense Variations of "Look"

Tense	Form	Example
Present	look	I look at the sky.
Past	looked	I looked at the sky yesterday.
Past Perfect	had looked	I had looked at the sky before you came.
Present Continuous	am/is/are looking	I am looking at the sky now.
Past Continuous	was/were looking	I was looking at the sky when you came.
Present Perfect Continuous	have/has been looking	I have been looking at the sky for hours.
Past Perfect Continuous	had been looking	I had been looking at the sky for hours when you came.

Usage of "Look"

The verb "look" can be used in various ways:

• look + preposition + noun/ pronoun: Indicates the direction of gaze towards an object or person, e.g., "I looked at the painting."
• look + adjective: Describes the external characteristics of something, e.g., "The sky looks clear."
• look + adverb: Indicates the direction or manner of looking, e.g., "I looked up at the sky."
• look + gerund: Implies observing someone or something, e.g., "I looked at her writing."

Additional Knowledge

While "look," "watch," and "see" all involve perceiving with the eyes, they have distinct nuances:

• watch: Focuses on observing something that is moving or changing, emphasizing continuous observation.
• see: Refers to perceiving with the eyes and understanding the information received.
• look: Emphasizes directing one's attention.