Meaning: A fish is moving through water inside a container designed for keeping fish.
Choice of Words: Fish is an aquatic animal, swim is the way fish move through water, tank is a container for holding water and fish.
Alternative Expressions
The fish swims in the tank.
Meaning: This means that the fish is moving through the water in the tank using its fins.
Choice of Words:Fish is a noun that refers to an animal that lives in water and has fins. Swims is a verb that means to move through water using fins. Tank is a noun that refers to a container that holds water and is used to keep fish. The words "in the" are used to indicate that the fish is inside the tank.
A fish is swimming in a tank.
Meaning: This means that there is one fish that is moving through the water in the tank using its fins.
Choice of Words:A is an article that refers to one of something. Fish is a noun that refers to an animal that lives in water and has fins. Is is a verb that means to exist or to be in a particular state. Swimming is a verb that means to move through water using fins. In is a preposition that means inside or within something. A is an article that refers to one of something. Tank is a noun that refers to a container that holds water and is used to keep fish.
There is a fish swimming in the tank.
Meaning: This means that there is one fish that is present and moving through the water in the tank using its fins.
Choice of Words:There is a placeholder word that refers to something that is present. Is is a verb that means to exist or to be in a particular state. A is an article that refers to one of something. Fish is a noun that refers to an animal that lives in water and has fins. Swimming is a verb that means to move through water using fins. In is a preposition that means inside or within something. The is an article that refers to a specific thing. Tank is a noun that refers to a container that holds water and is used to keep fish.