I'm starting off with a cool bass + guitar unisono groove by Creedence Clearwater Revival:
The song "Down On the Corner" features two different groove patterns.
Here's the verse groove:
The beats 2 + 4 are anticipated (played on the last sixteenth note of beat 1 + 3), which results in the feeling of accelaration on this part of the groove. Playing a note earlier than expected is called "Syncopation".
Here's the chorus groove:
We can find anticipation on beat 3.