Q:

“No,” said the child, “I won’t kneel, for if I do, I shall spoil my new pair of trousers.” 

• 1
  The child said that he would not kneel for if he did so he would spoil his new pair of trousers.
• 2
  The child said that I will not kneel for if he did kneel, he should spoil his new pair of trousers.
• 3
  The child said that he would not kneel for if he did so he will spoil his new pair of trousers.
• 4
  The child said that he will not kneel for if he kneels he will spoil his new pair of trousers.