verb
1
BAD : I wish you have a wonderful holiday.
GOOD : I hope you have a wonderful holiday.
BAD : I wish you will enjoy your stay here.
GOOD : I hope you will enjoy your stay here.
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Use wish that (+ past/past perfect tense) for things that cannot happen or will probably not happen: 'I wish I hadn't told them my address.' 'I wish you could stay here longer.' (= this will probably not happen)
Use hope that (+ present/present perfect tense) for things that may easily happen or may easily have happened: 'I hope you've had a successful trip.' 'We hope you all have a very merry Christmas.'
When wish is used for this meaning, the object is a noun phrase (NOT a that clause): 'I wish you a safe journey.' 'We'd like to wish you all a very merry Christmas.'
2
DUBIOUS : I wish to send you a wedding present.
GOOD : I'd like to send you a wedding present.
DUBIOUS : I wish to stay until the end of July but I can't.
GOOD : I'd like to stay until the end of July but I can't.
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When you tell someone what you want (to do), or ask someone what they want (to do), use would like or (especially in informal styles) want : 'I'd like to buy a few postcards.' 'What would you like to do tonight?'
Wish is used with this meaning only in formal styles: 'We wish to apologize for the late arrival of this train.'
3
BAD : I wish that they will stop killing each other.
GOOD : I wish that they would stop killing each other.
BAD : He wishes he can drive a car; taxis are so expensive.
GOOD : He wishes he could drive a car; taxis are so expensive.
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When you are thinking about the present or the future, use wish (that) + would /could/had etc. (NOT will/can/have etc.) 'I wish I knew his telephone number.' 'I wish I didn't have to go to school tomorrow.'