Re-write the following sentences according to the instructions given after each. Make other changes that may be necessary, but do not change the meaning of each sentence.
Every family has a black sheep. (Begin: There is no ................)
Topic: Transformation — affirmative to negative
Answer
There is no family without a black sheep.
This converts an AFFIRMATIVE statement into a NEGATIVE one with the same meaning, using a DOUBLE NEGATIVE: Affirmative: EVERY family HAS a black sheep. Negative: There is NO family WITHOUT a black sheep. Two negatives — "no" and "without" — cancel out and restore the original sense.
The pattern to learn, because it recurs:
Every X has Y → There is no X without Y
Everyone knows him → There is no one who does not know him
The trap is to write "There is no family with a black sheep", which says the exact opposite. After converting, always read your answer back and check it still means what the original meant.