When & be able to

[celtaflorida]

Hi.
In the statement 'when I've saved another $1,000, I'll be able to buy a new car.' why the the first clause uses present perfect and in the result clause the tense is future?
Thanks.

 

[Rover_KE]

Has somebody told you that you can't use different tenses in the same sentence?

Forget it—you can.

Rover

 

[emsr2d2]

We frequently use the present tense to refer to the future.

When I am 60, I will retire.
Once I have £1000, I will buy a car.