Should

Should is used for advice in the present.  The structure is as
follows:

Subject  +  Should  +  Base Verb

  • You should eat healthy food.
  • You should exercise every day.


Should is used for
advice in the past.  Here is the structure:

Should + Have + Past Participle

  • You should have gone to the party.
  • She should have studied more often.

It is common to use "should" to give negative advice.  In this
case, add "not".

  • You should not smoke.
  • You should not eat too much candy.

The contraction is "shouldn't".

  • You shouldn't drive too fast.


Would

The modal verb "would" is used to give advice.  In this
situation, the speaker is giving hypothetical advice as if
he/she were the listener.  Here are some examples:

  • If I were you, I would return the book.
  • If I were you, I would not wear that jacket.

It is not always necessary to include "If I were you".

  • I wouldn't eat that.
  • I would choose the red shoes.


Normally,
would is used to talk about yourself, and should is
used to talk about someone else.

Example:

  • I would study tonight if I were you.
  • You should study tonight.


It is also common to ask for advice using these modal verbs:

  • What should I do?
  • What would you do?


Try practicing the difference between
would and should with
advice using this test:

Modal Verbs for Advice Test

Modal Verbs for Advice Test 2

Modal Verbs for Advice

Business English
modal verbs
Modal Verbs Tests
Modal Verbs are used to give
advice or suggestions.  

There are two modal verbs
used for advice:  
Should and
Would.

You can see how to give
advice with the lesson below.
modal verbs