ESL General English Grammar Questions

Re: has had been

Mister Micawber — Thu, 24 Jul 2008 06:52:20 GMT

.
No. Since I don't know what you mean, here are your choices:

The microwave communication system has been adapted to the CEB to enhance the system control operations in general.
The microwave communication system had been adapted to the CEB to enhance the system control operations in general.
The microwave communication system has to have been adapted to the CEB to enhance the system control operations in general.
The microwave communication system had to have been adapted to the CEB to enhance the system control operations in general.

Re: has had been

Anonymous — Thu, 24 Jul 2008 05:11:27 GMT

The microwave communication system has had been adapted to the CEB to enhance the system control operations in general.

is this sentance correct gramatically?

Re: has been, had been

Grammar Geek — Thu, 28 Feb 2008 22:34:05 GMT

You are looking for the difference between the past perfect and the present pefect. Under your post are some links that will take you to posts that address this topic, or you could do a Google search on "present perfect" and see if those are helpful.

There have been so many discussions on this topic in these forums that you should be able to get many of your questions answered, but if you still have specific questions, please post again.

Simply, past perfect is the had + participle verson, and is used to talk about something that took place even further in the past than the main action in the past. Because John had forgotten his lunch, he was hungry all afternoon.

Present perfect is for something in the past that may continue into present, and is not used with a specific time reference.

has been, had been

Anonymous — Thu, 28 Feb 2008 21:39:59 GMT

Hey guys.

Can you please give me any links so I can read something about what kind of verb I should use "Has been/arrived/went" or "Had been/arrived/went". Or if you want, you can explain it here to me.

Appreciate all the answers.