帮忙指点一下这篇英语对话是否有语法错误.

帮忙指点一下这篇英语对话是否有语法错误.
我想根据《假话真情》那个小品翻译成一个英语话剧 请大家帮我帮我看下这部分对话中 是否有语法错误?
T:I don’t how to walk.
J:Just follow me.One,two,three,four….
S; There are nothing wrong with your legs.
S&M:Be careful Dad,Is there anything wrong with your right leg?
T:Which one did I say just now?
S:The left one.
T:Oh,I forgot it.
J.M.S:Forgot it?
M:There must be something wrong with our dad’s brain.
S; I completely agree with you.
J:Me,too.I have a friend whose father has the same disease.He didn’t know his own son at last.
T:who’s this guy.
M:I’m your son,dad.Don’t you know me?
T:You?No No..he is my son.(Point to Susan) Where is your beard?
S:How can I have beard?I’m a man.No,I am your daughter.
T:She is my daughter.(point to Michel)
M:Oh,my God.Dad ,how about your heart?
T:my heart is not very well.Sometimes it stops for a while.
M：How long does it last?
T:Not so long.One or two.hours
M; One or two hours?
J:Be quiet,Michel,Dad is ill.
M:One or two hours.It’s terrible.
T:The heart must have a rest when it’s tired.
M:Everyone can have a rest except the heart.
T:No,I do want the heart to have a rest.
J；ok ,dad,let the heart do it.
S:What shall we do?Jenny,if you visited Dad frequently,our Dad wouldn’t get sick.
J:I am so busy these days,I have been preparing the performance for one month..
S:You are busy.What about you,Michel?
M; I am busy,too.I am busy with my business for two months.
S; If there is something wrong with our dad,it all you fault.
M.J:How long have you not been home?
S:Three.I am busy,too.The final exam is coming.I should be responsible to the students.
Aside:( Susan Jenny and Michel quarrel with one another)
T:Great.That’s great.You all are good kids.You are so worried about me when you heard I was sick.I feel great when I see you in front of me.Everything is ok.I am so happy.Maybe I am the happiest person in the world.
J.S.M:what’s wrong,dad?Could you tell us the truth?
T:I’m fine,my kids.
M:Then Why do you call us back and tell us you are sick?
T:That’s because…..Do you know what day it is today?
M:Today,we will have a meeting .
J:Today,I will give a performance.
S:We will have a test.
M:No,ha ha ,tell you the truth.Today is May 14th.
J.M.S:Oh,my god,today is Dad’s birthday.
S:Hurry up,we should buy a cake.
T:You needn’t do that.Everything is ready.What I want is to eat cake together.
S:Dad
M:Dad
J:Dad
S.M.J:Happy birthday to you,Dad.
J:Wish you happiness,health forever.
S.M.J:Wish all the parents in the world happiness,heath forever.
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