Could anyone tell me if this sentence is correct? It's bothering me. Not mine, but I dont know if I should correct it or not. Thanks!
"Living with an English graduate for 4 years has had a, possibly predictable, effect on me."
It's the commas which are worrying me. And I can't get my head round using 'a' when referring to an effect. I know possibly begins with a consonant but still... bothering me.