MEANING OF ENGLISH ADVERB CLAUSES
1) ADVERBS OF TIME :
        # When     :        At a particular time.
                        - We will have a meeting when our instructors arrive.
        # Whenever:     At any time - formal.
                        - We will visit you whenever you want.
        # Anytime          :        At any time - informal - no particular time.
                        - Any time you are free, give me a call
        # Before   :        In the preceding time.
                        - Be sure to check the lights beforeyou leave.
        # After      : In the following time.
                        - We can leave after class.
        # Until or till:   Up to the time of - an action or condition.
                        - You must stay until it stop raining.
# Since      : After   a   definite   point   or   period   of   time in   the   past.  We use it with the present perfect.
                        - The weather has been bad since we arrived.
        # While     :        During the time that.
                        - While you get dinner, I’ll park my car.
        # As           :        At a particular time during another action.
                        - He got a call as we were finishing dinner.
        # Just as  :      At the exact time that.
                        - The phone rang just as we came in the door.
        # As soon as:   Promptly when.
                        - Call me as soon as you are ready to leave.
        # Now that:      Because now.
                        - I like her now that I’ve gotten to know her.
        # As often as: With the same frequency that.
                        - He brought Mary gifts as often as he had some money.
        # As long as:    Extend of time.
                        - You’re welcome to stay as long asyou want to
N.B :         When and While have the same meaning, however, when shows a particular time, while shows a duration of time.  | 
2 ) ADVERB OF PLACE :
        # Where:          a particular place.
                        - Let’s go where we can get some peace.
        # Wherever:     In every place.
                        - Sara makes friends wherever she goes.
        # Everywhere: In all place.
                        - There were guards everywhere we tried to go.
3 ) ADVERBS OF MANNER :
        # As though:    As if (comme si).
                        - The guard looked as though he had seen a ghost.
        # As if       :      as though (comme si).
                        - John looked at as if he didn’t understand.
        # As           :      (comme).
                        - The child never acts as we expect him to.
        # Like       :      (comme).
                        - He treats her like she is his slave.
4 ) ADVERBS OF PURPOSE :
        # So that   : In order that, so.
                        - We are saving our money so that we can buy a new car.
        # So           :In order that, so that.
                        - We had an early dinner so we could go to the cinema.
        # In order that : so that, so..
                        - He planned a later meeting in order thateveryone would be on time.
5 ) ADVERBS OF CAUSE OR REASON :
        # Because         :
                        - She ran away because she was afraid.
        # Since     :
                        - Since this message is very important, Let’s send it now.
        # As           :
                        - As I’m in a hurry now, I’ll talk to you later.
#As long as       :This conjunction meaning because or since must not be confused with as long as used as a time conjunction.
                        - As long as I get well paid for it, I don’t mind working late.
        # Now that        :
                        - She’s happy again now that her son has returned.
6 ) ADVERBS OF CONTRAST :
        # Although        :
                        - We enjoyed the dinner although the price was very high.
        # Though  :Less (*) formal than although but about the same meaning.
                        - He made a lot of money though he is not well educated.
        # Even though : It (*)emphasizes the idea of contrast.
                        - Even though the weather was terrible, we took the plane.
        # Even if   :Intensifies the condition.
                        - Even if the weather is cold, we will go out.
# While     : This mustn’t be confused with while as a time conjunction, while must be in initial position.
                        - While he is very rich, he isn’t very generous.
7 ) ADVERBS OF CONDITION :
        These are examples of adverbial conditional clauses:
        # If            :On condition that, in case.
                        - We will have the picnic if the weather is good.
        # Unless   :Negative of if, if not.
                        - We can’t win the prize unlesseveryone cooperates.
        # In case  :If.
                        - In case you’re late, we will have to leave without you.
        # On condition that: If.
                        - I’ll go on condition that you let me pay the food.
8 ) ADVERBS OF RESULT :
        # So ....that       :It’s used with adjectives, adverbs and nouns phrases.
                        The sentence can have much or many in it.
                        - He was so tired that he feel asleep in the chair.
# Such ....that   : It’s used only with nouns phrases and the sentence can’t have much or many in it
                        - We had such a good time that we didn’t want to go.
9 ) ADVERBS OF COMPARISON :
        # As .... as ,   Not so ...... as :
                        - The new commander is as strict as the old one.
                        - Jose is not so fluent as Maria.
 (*) emphasizes = give more importance to somewhere or something.
(*)Formal = following specifie rules.
(*)Informal = not following specifie rules, not serious.