Put The Verb Into The Correct Form Past Perfect Simple. My Mother ( Bake) By The Time She Left For Work
To put the verb "bake" into the correct form of the past perfect simple, we need to use the past participle of the verb. In this case, the past participle of "bake" is "baked".
Therefore, the correct form of the sentence would be:
"My mother had baked by the time she left for work."