Learning French at the basic level, I’ve pretty much cracked a way of remembering “To be” être and “To have” avoir. As the whole thing settles on the E and the A being at the forefront in my mind. Here’s how I translate it in my head, simple as:
English [ be = bE ] becomes French [ Être ] it’s all about the E.
English [ have = ‘Ave ] becomes French [ Avoir ] it’s all about the A.
Check this out that I made about the “To bE“ and the “To hAve” stuff: