make every effort to do
make every effort (to do something)
To put forth the greatest possible effort (to do, achieve, or accomplish something). I'll make every effort, but I can't guarantee that I'll be home before the party starts. We've made every effort to ensure the transition process is as seamless as possible for you and your team.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
make every effort to do something
to try very hard to accomplish something. I will make every effort to be there on time.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.