Greeting

• GREETING

Greeting is customary or ritualized words or phrases used to introduced on self or to greet someone.

You can use :

• Hi
• Hello
• How are you...?
• How do you do..?
• I'm happy to meet you
• I'ts nice to meet you
• Good morning

Perfect Tense

• PERFECT TENSE

Perfect tense is used for describing a past actions effect on the present : He has arrived. Now he is here.
This is holds true for events that have just been secluded as well as for events that have not yet occured.

Perfect tense is formed by combining have/has with the main verb past participle form :
a. I have arrived
   A negation is produced by inserting not after have/has
b. I have not arrived
   Question in present perfect are formulated by starting a sentences with have/has
c. Has she arrived ?

Present Tense

• PRESENT TENSE

Present tense is used to express habits, general truths, repeated actions or unchanging situations, emotions and wishes: i smoke (habit) ; i work in london (unchanging situation) ; london is a large city (general truth).

To give instructions or directions : you walk for two hundred meters, then you turn left. To express fixed arrangement, present or future : your exam start 07.30 a.m.

Past Tense

• PAST TENSE

Past tense is to tell the events or incidents at the past time.

Past tense is used : 

1. when the speaker thinks of an activity or state as occured and complete at a specific.
2. to refer a single event on the past.
3. for a non-fact in the present or future time. This is traditionally called the "subjunctive mood".