Though I am not a certified English teacher, I regularly use these basic premises of mnemonics:
a) Visualize the word
Pronounce each syllable as it appears. This step is the initial mnemonic link.
b) Synthesize the word
Pronounce the syllables as one word. Examples;
business Seems to read as buss-ee-ness
island Seems to read as iss-land
and candle Seems to read as cand-lee
But since we know the correct pronunciation,
c) Utilize the word
I own a candle making business.
Candle making is none of your business.
Island candle making is tough business.
Using the word in different contexts is an essential part of memory saturation.