5 TOEFL ITP Subjunctive Patterns: The Base Verb Rule

“The doctor recommended that he take the medicine.” Why he take and not he takes? And since recommended is past tense, why not took?

It’s not a typo. It’s the subjunctive, one of the favorite traps in TOEFL® ITP Structure & Written Expression. If you answer by “feel” using the usual rules (singular subject + -s, past sentence + past verb), you’ll get it wrong.

Luckily, there is one rule and it is very consistent: after a word of demand or urgency + that, the verb is the plain base form. Here are the 5 ways it shows up. (The slides below are in Indonesian, with the English examples.)

What Is the Subjunctive?

The subjunctive expresses a demand, suggestion, or something considered important to do. Its form is the base verb (bare infinitive), which never changes no matter the subject or the tense of the main clause.

Why the plain form? An easy way to remember it: imagine an unwritten should.

…recommended that he (should) take → he take …require that she (should) be → she be

British English often writes the should explicitly. On TOEFL, the form tested most often is the one without should, the plain base verb.

Pattern 1: Verbs of Urgency + That + Base Verb

Common trigger verbs: demand, insist, suggest, recommend, require, request, urge, propose, order, ask.

Formula: S + demand/suggest/recommend + that + S + base verb

✅ The doctor recommended that he take more rest. ❌ The doctor recommended that he takes more rest. ❌ The doctor recommended that he took more rest.

Two traps at once: takes (because the subject is he) and took (because recommended is past). Both are wrong. The tense of the main verb does not affect the verb after that.

Pattern 2: Subjunctive “BE”

If the that clause needs a form of to be (for an adjective or a passive), the form is always be, never is, am, are, was, or were.

✅ The regulations require that every applicant be on time. ✅ The committee insisted that the rule be obeyed. ❌ The regulations require that every applicant is on time.

Every applicant is singular, which is exactly why so many people reach for is. In the subjunctive, switch that reflex off.

Pattern 3: Negatives = NOT + Base Verb

Subjunctive negatives don’t use do, does, or did. Just put not directly before the base verb.

✅ The manager insisted that the staff not reveal confidential data. ❌ The manager insisted that the staff does not reveal confidential data. ❌ The manager insisted that the staff didn’t reveal confidential data.

Watch the word order too: not comes before the verb (not reveal, not be), not after it.

Pattern 4: Impersonal Adjectives (It Is + Adj + That)

The same rule applies after adjectives of importance: essential, important, crucial, vital, necessary, imperative, mandatory.

Formula: It is essential/vital/crucial + that + S + base verb

✅ It is essential that each student follow the lab safety guidelines. ✅ It is crucial that the report be submitted before Friday. ❌ It is essential that each student follows the lab safety guidelines.

This often appears in Structure with options like follow / follows / followed / following. As soon as you see It is essential that, look for the base verb.

Pattern 5: He/She/It Still Takes No -s

This is the heart of every pattern above and the most common trap. A singular subject (he, she, it, a person’s name, or a singular noun) still takes the base verb with no -s/-es.

✅ The professor suggested that Budi attend the seminar. ❌ The professor suggested that Budi attends the seminar.

If you’re used to the rules of subject-verb agreement (see also Singular vs Plural), remember that the subjunctive is an exception to them.

Careful: Not Every “Suggest That” Is Subjunctive

Suggest and insist can also mean “indicate” or “firmly claim that something is true”. With that meaning, the sentence is not a demand, so the verb follows the normal rules.

✅ The data suggests that the climate is changing. (stating a fact) ✅ He insisted that he had locked the door. (claiming a fact)

Ask yourself: is the sentence a demand or suggestion that something be done? If yes, use the base verb. If it just states a fact, use normal tenses.

Subjunctive Rules at a Glance

Situation	❌ Wrong	✅ Right
Singular subject	that he goes	that he go
Past main verb	demanded that she went	demanded that she go
Needs to be	that the rule is obeyed	that the rule be obeyed
Negative	that he doesn’t leave	that he not leave
Impersonal adjective	It is vital that she submits	It is vital that she submit

Quick Quiz

The committee demanded that the report _____ by Monday. (is finished / be finished)
It is imperative that every passenger _____ a seat belt. (wears / wear)
She suggested that he _____ late again. (not be / doesn’t be)

Answers:

be finished (the BE pattern for a passive).
wear (impersonal adjective, base verb).
not be (subjunctive negative = not + base verb).

Practice the Subjunctive for Real

The subjunctive is easy to understand and just as easy to forget when you’re rushing. The best fix is meeting the pattern often in real questions.

Kawan EPT (formerly Kawan TOEFL) includes Grammar lessons (33 topics with Learn, Drill, and Master stages), more than 7,400 questions with explanations for every answer choice, a full 140-question simulation with a score estimate from 310 to 677, and a Weakness Drill that brings back the topics you still miss. Free on the Google Play Store.