Problem with SHRINKing log file in AlwaysOn 2014

Hi,

I have a cluster and an AlwaysOn AG implemented on sql server 2014.

The problem is that I have to be able to shrink log file of the db whenever I want.

While I was doing some tests,I made the log file to growth but I was able to shrink only some of Its volume.Something like 1GB out of 2GB.As we know in simple recovery model we are able to shrink the log file completely,But in AlwaysOn we are unable to change the recovery model to simple.

Please help me do the shrink the log file completely.