Children run fast.

Meaning: This means that children are moving quickly by using their legs. It's like saying, The kids are sprinting.

Choice of Words: Children are young humans that are below the age of adulthood. Run is a verb that means to move quickly by using one's legs. Fast is an adverb that describes the speed of the action. In this sentence, all three words are common vocabulary words for an English learner.

Alternative Expressions

The children are running quickly.

Meaning: This means that a specific group of young people are moving quickly on their feet. It's like saying, A specific group of young people are moving quickly on their feet.

Choice of Words: The is a definite article that refers to a specific group of people or things. Children are young people, usually under the age of 18. Are is a verb that means to exist or to be in a certain state. Running means to move quickly on your feet. Quickly means to move at a high speed. When you put them together, "The children are running quickly" means that a specific group of young people are moving quickly on their feet.

The kids are sprinting.

Meaning: This means that a specific group of young people are running at a very high speed. It's like saying, A specific group of young people are running at a very high speed.

Choice of Words: The is a definite article that refers to a specific group of people or things. Kids are young people, usually under the age of 18. Are is a verb that means to exist or to be in a certain state. Sprinting means to run at a very high speed. When you put them together, "The kids are sprinting" means that a specific group of young people are running at a very high speed.

Related Expressions