6.4 High-Frequency Grammar Traps on iTEP

6.4 High-Frequency Grammar Traps on iTEP

Quick Answer: Before you choose, check part of speech, modifier placement, negatives, confusable pairs, and true-subject agreement. Most advanced Grammar misses on iTEP are one of these five traps—not exotic rare forms.

This section integrates high-frequency error patterns for last-minute review. Work it as a checklist you run on every stem in Grammar Part 1 and Part 2.

Trap 1: Word forms (noun / verb / adjective / adverb)

Many blanks recycle one root across four forms. The sentence structure—not the root meaning—decides which form fits.

Slot tests:

• After an article or adjective, need a noun: a careful analysis
• After a modal or to, need a base verb: must analyze
• Before a noun, often an adjective: an analytical approach
• After a verb or at clause end, often an adverb: analyzed the data carefully / analytically

❌ The team success completed the pilot. → ✅ successfully completed or The team’s success…

Process: Cover the options, name the needed part of speech, then uncover. This beats reading four similar-looking words in a panic.

Trap 2: Misplaced and dangling modifiers

A modifier must sit next to the word or phrase it describes.

Misplaced modifiers

• ❌ The researcher almost interviewed all fifty participants. (suggests she nearly started, not that she interviewed nearly all)
• ✅ The researcher interviewed almost all fifty participants.
• ❌ She served sandwiches to the children on paper plates. (ambiguous: children on plates?)
• ✅ She served the children sandwiches on paper plates.

Only, almost, just, nearly, even are frequent misplacement magnets—put them immediately before the word they limit.

Dangling modifiers

An introductory phrase must modify the subject that follows:

• ❌ Walking into the lab, the microscope was already on. (microscope was not walking)
• ✅ Walking into the lab, the technician saw that the microscope was already on.
• ❌ To improve reliability, the sample was expanded. (sample did not aim to improve)
• ✅ To improve reliability, the team expanded the sample.

On error ID, if an introductory -ing or to-phrase cannot logically describe the subject, that underline is often the fault.

Trap 3: Double negatives

Standard academic English allows one negative idea per clause (unless intentional rhetorical style, which tests rarely reward).

Words that are already negative or near-negative: no, not, never, neither, nobody, nothing, nowhere, hardly, barely, scarcely, rarely, without, unless. Pairing two of them usually creates a trap.

Trap 4: Confusing pairs (exam favorites)

Affect vs. effect

• Affect (usually verb): to influence — Stress can affect recall.
• Effect (usually noun): result — The effect of stress on recall was large.
• Less common: effect as verb “to bring about” (effect change); affect as noun in psychology. On iTEP, default to verb affect / noun effect.

Fewer vs. less

• Fewer + countable plural: fewer errors, fewer participants
• Less + uncountable: less time, less funding
• Also less with singular measures: less than 5 percent (accepted in many style guides). Prefer fewer for clear plural count nouns on tests.

Among vs. between

• Between for two (or distinct one-to-one relations): between pre-test and post-test
• Among for three+ as a group: among the five sites
• Between can appear with more than two when items are individually related (treaties between five nations)—choose among when the stem stresses undivided group membership.

Amount vs. number / much vs. many

• Number / many / few(er) with countables: a large number of surveys, many studies
• Amount / much / little/less with uncountables: a large amount of data, much effort

Who vs. whom

• Who = subject: Who designed the instrument?
• Whom = object: Whom did the dean appoint? / the scholar whom we cited
• Quick test: answer with he/she → who; him/her → whom.

Its vs. it’s; your vs. you’re; their vs. they’re vs. there

• its possessive; it’s = it is / it has
• your possessive; you’re = you are
• their possessive; they’re = they are; there = place / dummy subject

Lie vs. lay

• The files lay on the desk yesterday. (recline, past of lie)
• She laid the files on the desk. (put, past of lay)

Other quick pairs

• borrow (take temporarily) vs. lend (give temporarily)
• raise (transitive) vs. rise (intransitive)
• sit vs. set (set needs object)
• imply (speaker suggests) vs. infer (listener concludes)
• than (comparison) vs. then (time/result)
• accept vs. except
• advice (noun) vs. advise (verb)
• practice (noun; U.S. also verb) vs. practise (verb, British)—match the form options given

Trap 5: Agreement after delayed or disguised subjects

There is / there are

Agreement follows the real subject after there:

• There is a problem with the coding sheet.
• There are several problems with the coding sheet.
• There has been little progress. / There have been few updates.

Prepositional openers and of-phrases

• The set of results is ready. (head = set)
• The results of the study are ready. (head = results)
• Ignore nouns inside of-phrases when they are not the head.

Delayed subjects after modifiers

• Sitting on the shelf was the only remaining sample. (invert; agree with sample)
• Sitting on the shelf were the only remaining samples.

Relative clauses and parentheticals

• The professor, along with her assistants, is attending. (along with does not pluralize the verb)
• The professor and her assistants are attending.

Phrases like as well as, together with, including, in addition to usually do not change the number of the main subject.

Integrated 30-second stem audit (use on test day)

1. POS: What part of speech does the blank need?
2. Modifier: Does every -ing/to-phrase attach to a logical head?
3. negative: Is there only one negative marker?
4. pair: Does the stem use a classic confusable? Apply the pair rule.
5. agreement: What is the true subject? Delayed? There? of-phrase?
6. parallel / degree / voice / nonfinite / subjunctive / connector: Run the earlier chapter checks if the stem shows those structures.

Connecting back to Grammar section strategy

• Part 1: Predict the form first (Chapter 3), then apply this trap list to kill near-miss options.
• Part 2: Read the full sentence; the underlined error is often a trap type above, not a rare exception.
• Timing: If stuck after ~25 seconds, eliminate with POS + agreement, guess among remaining, move on—no penalty for wrong answers.

Mini practice mental set (do not skip)

Convert each wrong sentence:

1. The economical of the country affect consumer choices. → The economy of the country affects… / Economic conditions affect…
2. Running down the corridor, the fire alarm startled Mira. → Running down the corridor, Mira was startled by the fire alarm.
3. She didn’t know nothing about the protocol. → She didn’t know anything… / She knew nothing…
4. Less students enrolled this term. → Fewer students…
5. There is many reasons to replicate the study. → There are many reasons…

If you can repair these five instantly, your trap radar is ready for iTEP Grammar.

Keep this section as a final-day checklist: skim the tables, re-say the five-step audit aloud, and enter the test knowing that “advanced” items are usually familiar traps in academic costume—not brand-new grammar invented for one exam.