The phrase "quality control" is a noun and so doesn't have a past tense. Only verbs have past tenses.
the point at which a defect moves past our ability to correct it without impacting the end user.
This can be contrasted with quality control, which is focused on process outputs.
What inventions did quality control engineers invent
Inspect the quality to make the quality product and to assure the quality of the product,
Probably something like: Quality Control, or Quality Control Inspector.
The past tense of control is controlled. The future tense is will control.
the past tense of control is CONTR0LLED . or did control.
The past tense of "control" would be "controlled".
SPUN (I spun out of control) (I was spinning out of control)
the past tense of am is was and the past tense of has is had
She/He controls. Not quite; that is the 3rd person singular of the Simple Present Tense, or the Past Tense should be "controlled" (there isn't a special marker for the 3rd pers sg; all forms are identical).
The past tense of "has" is "had" and the past tense of "have" is "had."
Was and were are both the past tense of be. The present tense is: I am he is you are they are The past tense is: I was he was you were they were
"will be" is the future tense of "be". The past tense of "be" is "was/were".
The past tense is she did.
The word "were" is past tense. It is the past tense of the verb "to be."
The past tense of "will" is "would". The past tense of "to be" is "was" or "were".