has been working/has worked?

[Montgomery]

Hi,

I know it should be easy but I'm stuck.
Which tense should I use in this sentence:
He has been working there for 20 years.
He has worked there for 20 years.
???
Thank you in advance!

 

[majlo]

You could use either, I believe, with, possibly, minor changes in meaning perceptible mainly to native speakers. I myself would use continous aspect.

 

[kayokid]

Hello. Both sentences mean the same thing to me.

 

[Porteño]

The only difference is that the use of the continuous puts a little more emphasis on the continuity of the action.

 

[virr2]

Hi,

I know it should be easy but I'm stuck.
Which tense should I use in this sentence:
He has been working there for 20 years.
He has worked there for 20 years.
???
Thank you in advance!

These two sentence mean, more or less, the same, however in the first sentence there is an emphasis on duration.

Without the time reference, the meaning of the second sentence changes,
"He has worked there" would mean that he (probably) no longer works there, but knows, for instance, what this job involves, etc.