| Present simple||I play football every week.|
Here you want to say that it happens regularly.
|Present continuous||I'm playing football now.|
Here you want to say that it is happening at the moment.
| Past simple||I played football yesterday.|
You did it yesterday, it happened in the past., the action is finished.
|Past continuous||I was playing football the whole evening.|
You were doing it in the past. It's not sure whether the action was finished or not.
|Present Perfect||I have just played football.|
You have just finished it. So it has a connection to the present. Maybe your clothes are dirty.
|Present Perfect Continuous||I have been playing football for 2 hours.|
You want to say how long you have been doing it. (You started in the past and it continues up to the present.
|Past Perfect||I had played football when Susan came.|
The two actions are related to each other: you had finished to play football and after that the girl arrived.
|Past Perfect Continuous||I had been playing football when Susan came.|
Here you want to point out how long you had been doing it before the girl came.
|will future||I will play football next week.|
This is a prediction, you can probably do something else.
|going to future||I'm going to play football this afternoon.|
This is a plan you've made.
|Future Continuous||I will be playing football next Sunday.|
You do it every Sunday (as usual)
|Future Perfect||I will have played football by tomorrow.|
You will have done it before tomorrow.
|I would play football. |
You'll probably do it.
|I would be playing football. |
You'll probably do it. Here you concentrate more on the progress of the action.
|I would have played football. |
You'll probably have finished playing football at a special time in the future. Here you concentrate on the fact (football).
|I would have been playing football. |
You'll probably have finished playing football at a special time in the future. Here you concentrate on the progress of playing (football).