Verb Tense and Agreement Flashcards

The collection of rare books, which _______ donated to the library decades ago, _______ now a major attraction for scholars worldwide.

Answer: was, is

The first verb refers to 'The collection,' which is a singular noun, so 'was' is correct. The phrase 'which was donated...' is a non-essential clause describing the collection. The main subject of the sentence is still the singular 'collection,' which agrees with the singular verb 'is' in the second part of the sentence.

A team of researchers from various universities _______ conducting a study on the long-term effects of climate change. Which of the following correctly completes the sentence?

Answer: is

The subject of the sentence is 'team,' which is a collective noun. In American English, collective nouns are typically treated as singular entities, so the singular verb 'is' is the correct choice. 'A team...is conducting' maintains proper subject-verb agreement.

Scenario: A manager is writing an email to their team about a past project. Which sentence uses the correct verb tense and agreement? 'Last year, our marketing team _______ a new campaign that significantly _______ our sales.'

Answer: launched, increased

The phrase 'Last year' indicates that the actions took place in the past. Therefore, both verbs should be in the simple past tense. 'Launched' and 'increased' are the correct past tense forms, maintaining consistent tense throughout the sentence.

Neither the students nor the teacher _______ prepared for the sudden fire drill.

Answer: was

When subjects are joined by 'neither...nor' or 'either...or,' the verb agrees with the subject that is closer to it. In this sentence, the subject closer to the verb is 'teacher,' which is singular. Therefore, the singular past tense verb 'was' is correct.

By the time the new regulations are implemented next year, the company _______ its training program for all employees.

Answer: will have completed

This sentence describes an action (completing the training) that will be finished before another future action (implementing regulations). This requires the future perfect tense, which is formed with 'will have' + the past participle. 'Will have completed' correctly indicates this sequence of future events.

Which of the following sentences demonstrates correct subject-verb agreement?

Answer: The politician, along with the reporters, is entering the building.

The subject of the sentence is 'The politician,' which is singular. The phrase 'along with the reporters' is an intervening phrase and does not change the number of the subject. Therefore, the singular verb 'is' correctly agrees with the singular subject 'politician'.