Present Perfect (Unit 16)

[Sahira]

Dear Sir,

I can't understand present perfect well. I don't know what is the use of it? when we must use it? what is the different beteen present simple and present perfect? for an example sir,

01. She has opened the door.
02. She opened the door.

what is the different? and when I must use this?

Please help to clear it.

Sahira.

[English Teacher]

Dear Sahira,
First of all your question must be : What is the different between past simple and present perfect ? and not present simple?!

PRESENT PERFECT

Is used when an action happened in a certain time the past,that continued to the present time( some evidences appear on the subject)
For example: ( one who has just got out of the sea after swimming the water of the sea is dropping from him)
WE SAY: He has swum in the sea.
( also he may return to swim again).

PAST SIMPLE

Is used when an action happened in the past and finished.
(that person above when he finished swimming and clean the water on him and rested on the beach).WE SAY: He swum in the sea.
I hope I've been helpful.

[LashaK]

from 1 to 16 units were easy for me.
I think exercises will become more difficult.

thank you

[Gokul]

my dear teacher,

i want some more exercises on present perfect tense.
your step by step teaching was very super........... In this message if i made any mistake,please correct in your reply.

thanks a lot

[Srinivictory]

Respected authorities

I'am really glad to be entered as a (student) of your teaching plan. I hope it would be very helpful to me to improve the awareness of knowledge in English .

[Mrswaqar]

what is the different between regular and irregular verb ?

[Mustafegur]

Sir I need next unit. Thanks