RULE #6 In sentences beginning with “here” or “there“, the true subject follows the verb.
examples:There is a bush near the school playground.
Here are the keys.
RULE #7 The verb is singular if the subject is a singular indefinite pronoun such as each, either, neither, one, no one, every one, someone, anyone, nobody, somebody, anybody, everybody, one, no.
examples:Either of the plans is equally dangerous.
Several villages have been isolated by the heavy snowfall.
RULE #8 Use a singular verb for expressions of measurement, time. money and weight when the amount is considered one unit.
examples: Fifty dollars seems a reasonable price.
Three miles is too far to walk.
RULE #9 Plural form subjects with a singular meaning take a singular verb (such as mumps, home economics, social studies economics, measles, calisthenics, statistics, civics, physics, gymnastics, phonics, news, acrobatics, aesthetics, thesis, mathematics, …).
examples: Gymnastics is his favourite sport.
Mathematics is the science of pure quantity.
RULE #10 Titles of single entities (books, organizations, countries, etc.) are always singular.
examples:Harry Potter is an interesting novel.