Facts and permanent states
Jack works as a nurse. - Present Simple
General truths and laws of nature
The sun sets in the west. - Present Simple
For fixed arrangements in the near future
I am going out with Tony tonight. - Present Continuous
Just now they ..................... (wait) to do their military service.
Just now they are waiting to do their military service.
The Blues Band ....................... (appear) at the Odeon on Saturday.
The Blues Band is appearing at the Odeon on Saturday.
An action that happened at an unstated time in the past. The emphasis is on the action, the time when it occurred is unimportant or unknown.
I have washed the car. - Present Perfect
To put emphasis on the duration of an action which started in the past and continues up to the present.
We have been decorating the living room all morning. - Present Perfect Continuous
Sporting commentaries, reviews and narrations
Terry wins the ball, crosses and Lampard scores for Chelsea.
I ................... (use) John's mobile phone because I left mine at home.
I am using John's mobile phone because I left mine at home.
You .................. (always/complain) that waiters are rude!
You are always complaining that waiters are rude!
For actions taking place at or around the moment of speaking.
Jean is doing her homework. - Present Continuous
For temporary situations
We are fixing the fence this week. - Present Continuous
With adverbs such as always to express anger or irritation at a repeated action
She is always taking my things.
I .............. (not/obtain) a qualification in it yet.
I have not obtained a qualification in it yet.
So, in the first scene we ........... (see) him getting up and then he ................ (go) out and ................ (meet) a strange woman.
So, in the first scene we see him getting up and then he goes out and meets a strange woman.
Timetables and programmes (in the future)
His plane leaves at 10 next Friday. - Present Simple
For currently changing and developing situations
The temperature is becoming warmer and warmer. - Present Continuous
An action which started in the past and continues up to the present, especially with stative verbs such as be, have, like, know
I have known the Browns for six years. - Present Perfect
I ...................... (think) of doing a postgraduate degree - what ................... (you/ think)? Is it a good idea?
I am thinking of doing a postgraduate degree - what do you think? Is it a good idea?
Alice ............... (be/ always) very polite, but today she .............. (be) so rude.
Alice is always very polite, but today she is being so rude.
A recently completed action
I have just painted the house. - Present Perfect
For repeated actions in the past continuing to the present.
She has lost weight because she has been dieting.
Feelings and emotions
I love Mozart. His music is wonderful. - Present Simple
However, I .................... (wait) for a reply for several weeks and I still ................... (not/receive) any answer.
However, I have been waiting for a reply for several weeks and I still have not received any answer.
We .................... (know) him for many years and .................. (not/ understand) him yet.
We have known him for many years and have not understood him yet.