Would like/ like

1)            Would like means want, but it is more polite.
You can use it in sentences and questions.
I’d like a biscuit.
Would you like some tea?

2)            You can also use it to talk about your dreams and ambitions. 
I’d like to go to Japan.
I wouldn’t like to live here!

You can also use I’d love and I’d hate to talk about dreams.
I’d hate to live in the countryside.
I’d love to work with Simon.

Form:
1)            Would like is the same for all persons.
I would like some tea.
You would like some tea.
He / she / James would like some tea.
We would like some tea.
They / our clients would like some tea.

2)            To make questions, invert the subject and would.
  Would you / James / your clients like some tea?

3)            Use wouldn’t to make the negative form.
  I wouldn’t like to work there.

4)            Would like can be followed by a noun or to + verb.
  noun:    Would you like a biscuit?
  verb:     Would you like to go to Malaysia?

5)            In positive sentences, you can contract would to ‘d. 
I would like to go to the USA.      =>           I’d like to go to the USA.But NOT in negative sentences:
I’dn’t like to work in a factory.   =>           I wouldn’t like to work in a factory.
And NOT in short answers:
Would you like to have a horse?
Yes, I’d.    =>           Yes, I would.

6)            Be careful not to confuse would like and like.  
Use like to talk about things you like all the time. 
I like chocolate cake. It’s my favourite food. Use would like to talk about things you want now, or at some time in the future.
  I’d like a cup of coffee please.
  I’d like to work in a chocolate factory.

                                                        Can -modal feli.

Can / Could

Use: 
1) Use can / can’t to talk about your abilities now.
I can speak English.        I can’t speak German.

    Use could / couldn’t to talk about abilities in the past.
I could speak French when I was a child, but I can't now.
I couldn’t speak English when I was a child, but I can now.

2) Use can and could to make requests.  Could is more polite.
    Can you cook this evening please?           
    Could you pass me the salt?

    Use can to reply to requests.
    Can I sit here?                   =>           Yes, you can.      Sorry, you can’t.
    Can you cook this evening please?           =>           Yes, I can.            Sorry, I can’t.

    DON’T use could in replies.
    Could you lend me some money?
    Yes, I could.          =>           Yes, sure!  Sorry, I can’t.         

Form:
1) Can and could are the same for all persons.
I         can/could            speak English
you can/could            speak English
he / she / it         can/could            speak English 
we    can/could            speak English 
they            can/could            speak English.
     
2) The negative form of can is cannot, or can’t. The negative form of could is couldn’t.

3) There is always a verb after can and could, and the verb is always in the infinitive form(without to).
     Sally can help you.     NOT Sally can helps you. / Sally can to help you.

4) Make questions by inverting can and the subject.
     I can see you this afternoon.       =>    Can I see you this afternoon? 
     You could help me.    =>    Could you help me?             
5) Use can/can’t and could/couldn’t in short answers.
     Can your brother swim?         =>    Yes, he can.  No, he can’t. 
     Could you do the test?        =>    Yes, I could.  No, I couldn’t.

Common mistakes:
1) Some students make questions incorrectly.
     You can speak English?      =>     Can you speak English?
     I could sit here?           =>     Could I sit here?