Have (someone) in (one's) corner verb phrase
To have someone’s support or assistance
She is blessed to have her mom in her corner.
I never take you for granted. I appreciate having you in my corner.
Keep trying! You will always have me in your corner.
Used to to emphasize that attention is paid to the individuals who complain or cause problems
To assist someone to do something illegal or wrong
Use one's influence and power to support someone
1. Said when you decide to use your social influence to have an advantage over other people
2. To make money quickly by selling your personal properties or financial assets
3. To die or pass away
The verb "have" should be conjugated according to its tense.
The term originated in boxing, where a fighter's trainer and assistant are in his or her corner to provide advice between rounds. The figurative usage dates from the 1940s.