Passive Voice: Did I make these sentence correct?

[abc71044]

Did I make these sentence correct?

1. The door is always leave open. It should shut.
change to:
The door is always leave open. It should be shut.

2. A lot of negative events have been happened in Hong Kong this year.
change to:
A lot of negative events have happened in Hong Kong this year.

Why should make these change?

[Guest]

[Guest]

[Yankee]

Hi abc71044

You asked:

[Guest]

[Pamela]

A lot of negative events have happened in Hong Kong this year.(Ok)Have happened is present perfect form of the verb to happen

The door is always left open. It should be shut.
and the rule is :Passive: is + past participle(participleII)(is right)

[Yankee]

Hi

Just to clarify things (hopefully ):

To build the passive, you use BE (in the required verb tense/form) plus the PAST PARTICIPLE

Examples of the passive (in various tenses):
They are used.
It was built.
They have been found.
It will be needed.
It has to be done.

As both Pamela and "Guest" mentioned, your second sentence was correct this way:
A lot of negative events have happened in Hong Kong this year. --> CORRECT

That is a sentence with a verb (happen) in the active voice. The verb tense is present perfect.
You cannot use "happen" in the passive voice.

The sentence "A lot of negative events have been happening in Hong Kong this year." is also possible (correct). That would be the present perfect continuous (in the active voice.)

Amy

[Pamela]

Hi,Amy!
Frankly speaking Guest was me
I was in a hurry yesterday and I had no time to enter my login

[abc71044]

Excuse me
I still have a little confuses.
I want to ask what the different between these two?

present perfect continuous
A lot of negative events have been happening in Hong Kong this year.

and

present perfect
A lot of negative events have happened in Hong Kong this year.