Wouldn't is a contraction of "would not" and denotes a lack of permission or willingness on the part of the subject. Your father didn't want to let you borrow the car, and the landlady didn't want you to have guests.
Answer from John Clifford on Stack ExchangeVideos
Wouldn't is a contraction of "would not" and denotes a lack of permission or willingness on the part of the subject. Your father didn't want to let you borrow the car, and the landlady didn't want you to have guests.
The meaning is the same in both 1. and 2.
wouldn't is stronger than didn't.
If your father didn't let you borrow the car, you asked him once, and he replied 'no'.
If your father wouldn't let you borrow the car, you pleaded and begged, and still he said 'No. Absolutely not!'
In many cases the exchange of words, does not actually need to take place. We play the scenario in our heads, and determine with ourselves whether pleading helps. If we determine that pleading would not help, we use wouldn't even if they actually might, if only we asked them.
If it's right to say "wouldn't it?" Then why isn't it right to say "would not it?"
"Won't" is the short form of "will not". 'Wouldn't" is the short form of "would not" and would is the past form of will.
Won't and wouldn't are very common and informal in use, whereas will not and would not are usually formal.
Won't = will not is used when you are certain/have planned for something that is not going to take place in the future, for example he won't go to London, I won't lend you any more money, the door won't open, etc.
wouldn't = would not is used when we talk in the past about something in the negative about future, for example, he said he wouldn't lend me any money, I promised I wouldn't smoke any more, I assured my mother I wouldn't waste my time, etc.
Won't and wouldn't are also used in question tags.
As for the sentences in question, the correct sentence is "I hoped you wouldn't mind when I told you the truth".
If the verb in the first part is in the past tense then the second part should have 'would' and not 'will'. For example
He said he would come. (Not will because the verb 'say' is in the past tense)
If he didnt want to come then why did he say that he would (come) ? (here even the verb say is not in the past tense, however, there is 'did' which makes the verb from the past tense)
So your second sentence (I hoped you wouldn't mind when I told you the truth) is correct and the first one is grammatically incorrect.
more examples -
If i get the time, i will stop by at your place.
If i had got the time, i would have stopped by at your place.
If you had asked me nicely, i would have come with you.
If you ask me nicely, i will / would come with you.
See this one
What will you do with so much money ? - (You put 'will' here because you know that person to whom you are asking has got that kind of money.
would is often used as past tense of will (that sounds a bit ironic as in past tense of future)
Suppose you are asking a person about a future possibility then you frame your question using 'would'
example
If you win one million dollars worth of a lottery, then what would you do with so much money? (here 'will' is not possible because the he hasn't yet got that money)
Would is used in many different ways which makes it an altogether a seperate lesson to be learnt.
But for now i hope this answer is sufficient.