I have been eating at this station for years.   (And I never had a good meal.)


OK.... (S + HAVE/HAS + BEEN + V1 + ING) is Present Perfect Continuous.

We have just been doing Present Perfect Continuous.  You have been studying with us for 16 lessons.  We have been serving you drinks all the time. (You haven't been paying attention.)

To make a negative, just change the (HAVE/HAS) to (HAVE/HAS + NOT).
You haven't been going to classes very long.
You (S) haven't (HAVE/HAS + NOT) been (BEEN) going (V1 + ING) to classes very long.

Have you been thinking it would be simpler? 
Let's do a few questions for the Present Perfect Continuous.
have school's your been for were  you cheering has team
____ ____ _____ _____ _____ _____ _____ ____  ?

Return to P-Grammar?