Need Help Macro

Hello, i need a macro to cast my Maul attack more often on my bear, I have attack speed of .09 and spam the keys and i dont do more mauls at .09 attack speed then i do a say .25.
Is there a way to have Maul cast on ever single auto attack or a way to have it be Cast more often with my key spamming. i use

/cast Swipe(bear)
/cast !maul

it just doesn’t seem to be cutting it would love some input or help making a macro.