Subject-verb agreement is an essential aspect of grammar that ensures your sentences are clear and grammatically correct. One common area where subject-verb agreement can cause confusion is when dealing with measurements. Here are some rules to follow when it comes to subject-verb agreement and measurements:

1. Singular measurements take singular verbs, and plural measurements take plural verbs.

For example:

– Ten minutes is not enough time to finish the project.

– Three cups of flour are needed for the recipe.

In the first sentence, “minutes” is a singular noun, so “is” is the correct verb to use. In the second sentence, “cups” is a plural noun, so “are” is the correct verb to use.

2. Fractions and decimals are treated as singular nouns, even when the number is greater than one.

For example:

– Two-thirds of the cake has been eaten.

– 0.5 liters of water is not enough for a day`s supply.

In both sentences, the subject is a fraction or decimal, so a singular verb is used.

3. When a measurement phrase is used as a modifier, it doesn`t affect subject-verb agreement.

For example:

– The five pounds of apples in the basket are fresh.

– The 10-minute break between classes is not long enough.

In both sentences, the subject is “apples” and “break,” respectively, so the verb agrees with them regardless of the measurement modifier.

4. When dealing with indefinite measurements such as “a lot” or “some,” the verb agrees with the noun that follows.

For example:

– A lot of money was spent on the party.

– Some of the information is incorrect.

In the first sentence, “money” is a singular noun, so “was” is the correct verb to use. In the second sentence, “information” is a singular noun, so “is” is the correct verb to use.

In summary, subject-verb agreement in regards to measurements can be tricky, but it`s essential to ensure clear and concise writing. Remember to match singular measurements with singular verbs and plural measurements with plural verbs. Don`t forget to treat fractions and decimals as singular nouns and that measurement modifiers don`t affect subject-verb agreement. By following these rules, you`ll be able to write grammatically correct and effective sentences that convey your message accurately.