Happy birthday Mum in law! Thank you for letting me babysit your son/daughter for the rest of my life.
Happy birthday to the coolest mother in law ever! Love your ice-cold strictness and caring attitude, ma’am.
Dearest mother in law, I know you secretly hate me for stealing your daughter/son. But I want you to know I love you too. Happy Birthday!
Can’t believe my favorite woman is getting grey hair already. Happy birthday to my mother in law!
Happy birthday mum in law! We will be coming over to eat all your delicious dishes. P.S. I’ll be stealing all your recipes.
Sometimes you irritate me with your irrelevant talks, but still, I love to hear them all. Happy birthday, dear mum.
I wanted to send you a birthday cake but then I remembered you are not allowed to eat sweets. So, sweet birthday wishes to you mother in law.
No one can scold me like you do. Still, I love you from the deepest corner of my heart. Happy birthday, dear mother in law.