They swim faster now.

Meaning: This sentence describes how quickly the ducks are moving through the water.

Choice of Words: They refers to the ducks. Swim means to move through water using your arms and legs. Faster means to move at a greater speed. Now means at the present time. When you put them together, "They swim faster now" means that the ducks are moving through the water at a greater speed at the present time.

Alternative Expressions

Related Expressions