4.1 Verb Tenses and Aspect

4.1 Verb Tenses and Aspect

Quick Answer: iTEP Grammar Structure items reward knowing when an action happens and how it relates to another time—simple vs progressive vs perfect vs perfect progressive—plus sequence of tenses across clauses. Read time markers first, then pick the matching form.

Why tense and aspect dominate Grammar points

The Grammar section of iTEP Academic-Core is 25 multiple-choice items in about 10 minutes. Part 1 (13 fill-in-the-blank) and Part 2 (12 error-identification) both lean heavily on verb form. You will not write free essays; you will choose among near-miss forms of the same verb. That means small aspect mistakes—using simple past when the stem needs present perfect, or progressive with a stative verb—are classic wrong options.

Think of English verbs as a grid, not a list of twelve unrelated labels. One axis is time (present, past, future). The other is aspect (simple, progressive, perfect, perfect progressive). iTEP stems pull from the whole grid at beginner through advanced difficulty.

The tense–aspect grid (reference table)

Simple states a fact, habit, or complete event. Progressive highlights an action in progress at a reference time. Perfect links a prior action to a later reference point (result, experience, or completion before a deadline). Perfect progressive stresses duration up to that reference point.

Present forms that iTEP likes to test

• Present simple for habits, general truths, scheduled future (The lab opens at nine), and permanent situations.
• Present progressive for actions happening now or temporary situations (She is living in the dorm this semester).
• Present perfect for life experience, recent results with present relevance, and unfinished time periods (I have already submitted the proposal).
• Present perfect progressive for ongoing duration with for / since (They have been collecting data since March).

Past and past perfect

• Past simple for finished events at a definite past time (In 2019 the policy changed).
• Past progressive for background action interrupted by another past event (While the students were reviewing, the fire alarm rang).
• Past perfect for the earlier of two past events (By the time the dean arrived, the committee had voted).
• Past perfect progressive for duration before a past point (She had been teaching for a decade before she moved abroad).

Future and future perfect

• will + base for predictions and spontaneous decisions; be going to for plans and evidence-based predictions.
• Future progressive for actions in progress at a future time (At 3 p.m. we will be taking the listening section).
• Future perfect for completion before a future deadline (By next June she will have completed the course).
• Future perfect progressive for duration up to a future point (In September they will have been living here for five years).

Time markers: your fastest clue

On both fill-in and error-ID items, underline time words mentally before choosing.

Example (fill-in style):
By the time the registrar posts grades, most students _____ their housing deposits.
Prediction: future perfect → will have paid (not pay, paid, or have paid).

Example (error-ID style):
Since 2020 the department offered three new electives each spring.
Error: offered should be has offered (or has been offering) with Since 2020.

Sequence of tenses

When one clause reports another time frame, forms usually agree in a chain:

1. Main clause present → subordinate flexible
   She says she works / is working / worked late.

2. Main clause past → subordinate typically shifts back
   She said she worked / was working / had worked late.
   (Not usually she said she works late in careful academic English when the speech act is past—unless the content is still a general truth: She said water boils at 100°C.)

3. Past perfect for the earlier past when two past times stack:
   Researchers realized the sample had been contaminated.

4. Conditional and time clauses use present forms for future meaning after if / when / after / until / as soon as:
   When the lecture ends, we will ask questions. (not when the lecture will end)

Stative vs dynamic verbs (high-frequency trap)

Stative verbs (know, believe, own, seem, prefer, contain, consist) rarely take progressive aspect in standard academic English:

• Correct: She knows the answer.
• Trap option: She is knowing the answer.

Some verbs switch meaning when progressive is allowed (think = consider vs think = believe; have = experience vs have = possess). iTEP options often plant progressive on a pure stative use.

Mini diagnostic: same lemma, four traps

Stem idea: The committee _____ the proposal before the deadline last Friday.

If the stem instead said already and no past time, has reviewed would rise.

Fill-in vs error-ID application

Part 1 (completion): Predict aspect from markers → match form → reject near-miss conjugations (had went, have ran, double-marked did worked).

Part 2 (error identification): Scan underlined segments for (1) time marker vs tense clash, (2) missing past perfect in clear “earlier past” frames, (3) progressive on statives, (4) will inside when/if time clauses for future.

Practice micro-set (self-check)

1. While the professor _____ the slide, several students raised their hands. → was explaining
2. She _____ three papers so far this term. → has written
3. By next July the lab _____ the trial for two years. → will have been running / will have run
4. He said he _____ the form the day before. → had submitted

Study moves for this skill

1. Build a one-page tense map with one example sentence per cell of the grid.
2. Drill time-marker flashcards (since → perfect; by the time + past → past perfect earlier event).
3. When you miss an iTEP-style item, rewrite the stem with a different marker and force a new correct form.
4. Keep sequence of tenses as a separate drill: convert present-speech reports into past-speech reports.
5. In timed sets, spend at most ~20–25 seconds per Grammar item; if two options remain, choose the one that respects the strongest time marker.

Master this grid and you unlock a large share of Grammar points before you even reach clauses, modals, and conditionals in later chapters.