Meaning: This sentence describes the boy observing the puddles getting larger.
Choice of Words: "He" is the subject, "saw" is the verb, "the puddles" is the object, and "grow" is the verb describing the change in size of the puddles.
Alternative Expressions
The boy watched the puddles expand.
Meaning: This sentence describes a young male observing the puddles becoming bigger in size over time.
Choice of Words: The sentence uses the verb "watched" to indicate that the subject observed something over time. The noun "boy" is a specific reference to a young male. The verb "expand" describes the process of becoming larger in size.
The puddles increased in size before his eyes.
Meaning: This sentence describes the puddles becoming bigger in size, and the subject witnessed this change.
Choice of Words: The sentence uses the verb "increased" to indicate that something became larger. The noun "puddles" refers to small pools of water that form on the ground after rain. The phrase "before his eyes" indicates that the subject witnessed the change in size.