Present Perfect Continuous — English Grammar Exercises

Present Perfect Continuous: A Complete Grammar Reference

The present perfect continuous is frequently taught alongside the present perfect simple, and the two are often confused because both connect the past to the present moment. Research on learner English shows that the two most common present perfect continuous errors are the reverse of each other: using the continuous where a number, amount, or word like 'already' demands the simple form, and using the simple form where a duration with 'for' or 'since' demands the continuous. Analysis of intermediate learner writing places 'how long' questions and duration expressions among the contexts most reliably answered with the continuous, while counted results and state verbs pull firmly toward the simple form. These 32 exercises isolate every one of these decision points: form, how-long questions, for and since, negatives, explaining a present result, and the specific traps — number, amount, already, yet, always with state verbs — where the present perfect simple must be used instead.

Forming the Present Perfect Continuous

The tense is built from have/has + been + the -ing form of the main verb, with 'has' for third-person singular subjects and 'have' elsewhere: 'He's been working at the company since 2020', 'We've been waiting for about an hour'. Negatives insert 'not' after have/has: 'Elizabeth hasn't been working this week — she's been off ill.' Questions invert have/has and the subject, often introduced by 'how long' or 'what': 'How long have you been waiting?', 'What have you been doing since I last saw you?'

For and Since: Measuring the Duration

'For' is followed by a length of time, and 'since' by a starting point — both describe a situation continuing up to the present moment. 'For about an hour' measures duration; 'since three o'clock' names the moment the activity began. Confusing the two is a common error, since both feel equally natural in speech but require grammatically different following words (a period versus a point in time).

Explaining a Present Result: The Recent-Activity Use

One of the most distinctive uses of the present perfect continuous is explaining something visible right now — wet clothes, tiredness, a tan — by pointing to the recent or ongoing activity that caused it. The emphasis falls on the activity and its duration, not on a finished, countable outcome, which is why this use consistently prefers the continuous over the simple form.

When the Present Perfect Simple Is Needed Instead

Several signals override the continuous and require the present perfect simple even in an otherwise similar sentence. A specific number of times ('I've washed the car twice this week') or a counted amount ('we've had three lessons so far') both call for the simple form, because the focus shifts from ongoing activity to a completed, countable total. 'Already' and 'yet' also pattern with the simple form ('I've already finished', 'I haven't washed the car yet'), as does 'always' when it modifies a state verb ('he's always wanted to be a pilot' — not 'has always been wanting'). Finally, pure state verbs like 'know' never take the continuous at all: 'How long have you known Mark?'

Common Mistakes

Frequently Asked Questions

What is the present perfect continuous used for?

The present perfect continuous (have/has been + verb-ing) describes an activity or situation that started in the past and continues up to now, or that has very recently stopped but still explains something visible in the present: 'How long have you been waiting for the bus?' asks about an ongoing wait; 'I've been washing the car' (said while the speaker's clothes are still wet) explains a present result through a recent activity. The tense puts the emphasis on the duration or the activity itself, not on a finished, countable outcome — that distinction is what separates it from the present perfect simple.

What is the difference between 'for' and 'since' with the present perfect continuous?

'For' is followed by a length of time — a duration counted in units: 'I've been working here for six months.' 'Since' is followed by a starting point in time — a specific moment, date, or event when the situation began: 'I've been working here since March.' Both combine naturally with the present perfect continuous because the tense itself describes something running from a past point up to now; 'for' measures how long that stretch has lasted, and 'since' names where it started.

Why do we say 'I've been working' instead of 'I've worked' to explain being tired?

When a present perfect continuous sentence explains a visible result in the present — being tired, wet, dirty, or out of breath — the continuous form is preferred over the simple form because it draws attention to the duration and effort of the activity itself, which is what caused the visible state: 'She looks exhausted — she's been working all day without a break.' The present perfect simple ('she's worked') would sound like a report of a finished, countable task rather than an explanation for how she currently looks or feels.

When should I use the present perfect simple instead of the continuous?

Switch to the present perfect simple whenever the sentence contains a specific number or amount ('I've washed the car twice'), the words already or yet ('I've already finished'; 'I haven't finished yet'), the word always with a state verb ('he's always wanted to be a pilot'), or a state verb generally (know, like, own, believe), since state verbs never take the continuous form at all: 'How long have you known Mark?', never 'have you been knowing'. In each of these cases, the sentence emphasises a completed result, a total count, or an unchanging state — not an ongoing activity — so the simple form is required.

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Last updated: 2026-08-29 · Satori Editorial