how do i display animations randomly and differently?

i have one sprite with five animation. i want to change the sprite animation every 3 seconds. I has been searching how to make it and i found command "choose". My sprite animation changed every 3 seconds but too often displays the same animation. first shows animation 1 and after the first 3 seconds is still animation 1 and only a few 3 seconds later the animation changes, i dont want this. i want after the first 3 seconds it will change randomly with other animation and will repeat after the next 3 seconds again. I want after the first 3 seconds it will change randomly with other animation and animation before will repeat after the next 3 seconds again. eg: animation 1 to animation 3 to animation 1 to aninmation 2 etc...