You had not taken that into account. Would be the grammatically correct version of that sentence.
To correct the unclear reference, you must reword the sentence. The sentence isn't clear that the pronoun 'it' refers to the suit or the car. Reworded: Take the suit to be cleaned when you take out the car. Put the suit in the car and take the car to be cleaned.
It should rather be: Let Mr. A correct the sentence?
The verb in that sentence is "take". It's not the correct form, though. The correct form is "takes".
No Did we take your pictures?
You would say 'before takiing into account'.
It does not take long to verify and account. The account is verified as soon as the details are accepted. The details should be correct and valid to verify.
Lessons
To correct a run-on sentence, you can split it up into smaller sentences, insert commas, or insert semicolons. Basically, add grammar and take out anything that is unnecessary to the sentence.
You take the word, and put it in a gramatically correct sentence. :) *HEY NATALIE ;) FROM: BANANA*
The only correct action the teacher should take is a forfeiture of credit, as this sentence was plagiarized.
It's a bad idea to let them automatically take the money from your bank account.
Yes, it is perfectly valid.