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Sentence Correction: Relative Clauses - One of the + plural noun + who/which/that

Dr. Joel Fuhrman is one of the leading nutritionists who recommend that people convert to a raw plant-based diet.

This answer choice is grammatically incorrect. The relative clause who recommend that...diet describes the noun that appears immediately before it, namely, nutritionists. Since nutritionists is plural, the verb that follows it also needs to be plural. However, recommends is singular.

What helps us identify this question as a Relative Clause question as well as identify the mistake is the following Stop Sign:

one of the + plural noun + who/which/that

Whenever you see this Stop Sign, make sure that the following verb is plural.

This answer choice is grammatically incorrect. Recommend is one of the nine verbs to which the Subjunctive rule applies (if it is followed by that). This means that the next verb after recommend that should be in base form. However, converting is not in base form.

What helps us identify this question as a Subjunctive question as well as identify the mistake is the following Stop Sign:

propose/recommend/require/request/insist/suggest/mandate/ask/demand that

Whenever you come across this Stop Sign, make sure that the following verb is in its base form.

This answer choice is grammatically incorrect. Recommend is one of the nine verbs to which the Subjunctive rule applies (if it is followed by that). This means that the next verb after recommend that should be in base form. However, will convert is not in base form.

What helps us identify this question as a Subjunctive question as well as identify the mistake is the following Stop Sign:

propose/recommend/require/request/insist/suggest/mandate/ask/demand that

Whenever you come across this Stop Sign, make sure that the following verb is in its base form.

This answer choice is grammatically incorrect. Recommend is one of the nine verbs to which the Subjunctive rule applies (if it is followed by that). This means that the next verb after recommend that should be in base form. However, converted is not in base form.

What helps us identify this question as a Subjunctive question as well as identify the mistake is the following Stop Sign:

propose/recommend/require/request/insist/suggest/mandate/ask/demand that

Whenever you come across this Stop Sign, make sure that the following verb is in its base form.

Correct!

The original sentence is grammatically correct as it matches the plural verb recommend with the plural noun nutritionists. It also correctly uses the Subjunctive form by keeping the verb that follows recommend that in its base form (convert).

recommend that people convert
recommend that people converting
recommends that people convert
recommend that people will convert
recommend that people converted