1. Simple Present Tense
Used for general truths, scientific facts, habits, daily routines, and permanent situations.
* Structure:
* Positive:
Subject + V_1 base form / s / es + Object
* Negative:
Subject} + do/does not + V_1 + Object
* Question:
Do/Does + Subject + V_1 + Object?
* Common Indicators: always, usually, often, sometimes, rarely, never, every day/month, once a week
Examples:
* Habit/Routine: She wakes up at 6:00 AM every day.
* Universal Truth: The sun rises in the east.
* Permanent State: They live in London.
* Negative: He does not like bitter gourd.
2. Present Continuous (Progressive) Tense
Used for actions happening right at the moment of speaking, temporary situations, or planned near-future events.
* Structure:
* Positive:
Subject + is/am/are + V_1 + ing+ Object
* Negative:
Subject + is/am/are not+ V_1+ ing + Object
* Question:
Is/Am/Are + Subject + V_1+ ing + Object?
* Common Indicators:
now, right now, at the moment, currently, this week/month, Look!, Listen!
Examples:
* Action now: The children are playing in the garden right now.
* Temporary situation: I am staying at a hotel this week.
* Planned future: We are meeting the client tomorrow afternoon.
* Stative verb note: Verbs of perception, emotion, or possession (e.g., know, love, seem, belong) rarely take the continuous form: I know the answer (not I am knowing).
3. Present Perfect Tense
Used for actions completed in the past that have a direct result or relevance in the present, or for life experiences without a specific past time.
* Structure:
* Positive:
Subject + has/have + V_3 (past participle)+ Object
* Negative:
Subject + has/have not + V_3 + Object
* Question:
Has/Have + Subject + V_3 + Object?
* Common Indicators:
already, just, yet, ever, never, recently, so far, since, for
Examples:
* Recent action with present result: I have lost my keys (so I can't enter the house now).
* Life experience: She has visited Japan three times.
* Unfinished time period: We have seen two movies this week.
* Negative: He has not finished the report yet.
4. Present Perfect Continuous Tense
Used for actions that started in the past and are still continuing right now, or actions that just stopped but have visible evidence in the present. Emphasizes duration.
* Structure:
* Positive:
Subject+ has/have been+ V}_1+ ing+for/since + Time
* Negative:
Subject+ has/have not been + V_1 + ing+ Time
* Question:
Has/Have + Subject + been+ V_1 + ing?
* Usage Rule:
* Since: Point of time (since 2018, since Monday, since morning)
* For: Duration / period of time (for 3 hours, for 5 years, for two weeks)
Examples:
* Ongoing action: It has been raining since morning.
* Ongoing career/habit: She has been working here for over six years.
* Recent continuous action with visible result: You look tired; have you been running?
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