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
The past tense of get is got. For isn't a verb and so doesn't have a past tense. The past tense of has is had. Had is already the past tense. 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
The past tense of "will" is "would" and the past tense of "be" is "was" or "were" depending on the subject (singular or plural).
Wrote is past tense. It is the past tense of write.Wrote is already a past tense.
The past tense of "finish" is "finished". The past tense of "be" is "was" (singular) or "were" (plural).
The past tense is schooled. The past continuous tense is 'was/were schooling'.
The three kinds of past tense are simple past, past continuous, and past perfect. Simple past is used to describe a completed action at a specific time, past continuous describes an action that was ongoing in the past, and past perfect is used to show that one action in the past happened before another.