subject + auxiliary + not + main verb + any-wordIf not is already in the clause, use any-words, not nothing, nobody, or nowhere.
English normally uses one negative form per clause: I don't know anything or I know nothing, not I don't know nothing.
subject + auxiliary + not + main verb + any-wordIf not is already in the clause, use any-words, not nothing, nobody, or nowhere.
subject + verb + no-wordIf the clause already uses a no-word, do not add another negative marker.
I do not know anything about that.
After do not, use anything, not nothing.
Use standard negative patterns in daily speech and writing: I don't need anything, Nobody called, We have no time.
In emails, reports, and exams, avoid double negation. Standard English expects one negative form in each clause.
Double negation is about two negative forms in one clause. not all and not every are different: they mean partial negation, not a grammar error.
In standard English, two negative forms in one clause create a grammar problem. Keep one negative form and express the meaning clearly.
anything often appears in negative sentences and questions: I don't want anything. Did you see anything?
USE_ONE_NEGATIVE_FORMw5In standard English, one clause normally carries one negative signal. Use not with any-words, or use a no-/nothing-/nobody-word without another negative marker.
MATCH_NOT_WITH_ANY_WORDSw5After don't, doesn't, didn't, can't and similar negatives, choose any-words instead of no-words. This keeps the clause negative only once.
USE_NO_WORDS_WITHOUT_NOTw5If the negative meaning is already inside nobody, nothing, nowhere, no one, or no + noun, do not add don't, doesn't, didn't, or not in the same clause.
FIX_DOUBLE_NEGATION_ERRORSw4When a clause has two negative forms, remove one and rebuild the sentence. Keep the meaning negative, but make the form standard.
RECOGNIZE_STANDARD_NEGATIVE_PATTERNSw3Notice common standard patterns such as don't know anything, nobody came, and there is no time. These patterns express one clear negative meaning.