Notes On Present Perfect and Present Perfect Continuous Tense

Summary

We use the present perfect to express that an action started in the past and has lasted until now, or was only just completed. The present perfect simple is generally used to emphasise the completion of an action and its results. With the present perfect continuous, we emphasise the length or the uninterrupted progress of an action.

Usage:

Present Perfect Simple	Present Perfect Progressive
Result (what, how many/much, how often) Example: He has worked very hard. I have written a letter .	Duration (how long, since when) Example: I have been working here since 2007 I have been writing letters all day.
Negative: not since the last occurrence Example: I haven’t eaten anything all day.	Negative: not since the beginning of the action Example: I have not been eating all day.

Present Perfect Simple

Present Perfect Progressive

Result (what, how many/much, how often)

Example:

He has worked very hard.

I have written a letter .

Duration (how long, since when)

Example:: I have been working here since 2007; I have been writing letters all day.

Negative: not since the last occurrence

Example:: I haven’t eaten anything all day.

Negative: not since the beginning of the action

Example:: I have not been eating all day.

Signal Words

Present Perfect Simple	Present Perfect Progressive
how often … times	how long since for

Summary

Usage:

Present Perfect Simple	Present Perfect Progressive
Result (what, how many/much, how often) Example: He has worked very hard. I have written a letter .	Duration (how long, since when) Example: I have been working here since 2007 I have been writing letters all day.
Negative: not since the last occurrence Example: I haven’t eaten anything all day.	Negative: not since the beginning of the action Example: I have not been eating all day.

Present Perfect Simple

Present Perfect Progressive

Result (what, how many/much, how often)

Example:

He has worked very hard.

I have written a letter .

Duration (how long, since when)

Example:: I have been working here since 2007; I have been writing letters all day.

Negative: not since the last occurrence

Example:: I haven’t eaten anything all day.

Negative: not since the beginning of the action

Example:: I have not been eating all day.

Signal Words

Present Perfect Simple	Present Perfect Progressive
how often … times	how long since for

Summary

Present Perfect and Present Perfect Continuous Tense

Usage:

Signal Words

Summary

Usage:

Signal Words

Related Questions

write a story based on the topic"old people are the light house who always show a ray of light in dark ness "