Sentence Correction RoadMap

Thanks for the tips!

Probably, something like this

gmatclub. com/forum/all-sc-rules-official-qs-by-experts-legendary-club-members-145563

Especially the content I found in this one right below:

gmatclub. com/forum/comprehensive-sc-guide-106724


Step 1: Look at the underlined portion and try to figure out if there are some really apparent
discrepancies with subject-verb agreement, parallelism, or tense usage.
Step 2: Read the answer choices. The answer choices can generally be split into two or three groups
depending on a common structure.
Step 3: One of the common structures WILL be wrong. Identifying this wrong structure will help you
eliminate two to three choices at once and hence you will be left with two or three other choices.
Step 4: Perform the same splitting action again within this subgroup to determine what the differences
in answer choices are. Once you have identified the change that needs to occur in the original question,
try to correlate that change with the answer choices remaining to pick the best answer.
Step 5: Read the final answer choice you’ve chosen, along with the original question. Make sure to pick
an answer that only modifies what is necessary and no more than what is necessary. You might get
tricked into believing that a change is necessary, but if something reads right in the original question,
there is absolutely no need to change it

This is very very helpful but I was wondering whether there is a greater breakdown for the step 1 "and try to figure out if there are some really apparent discrepancies with subject-verb agreement, parallelism, or tense usage."