A Letter Oof Apology A Letter of Apology

Dear Alex Johnson, Dear Alex Johnson,

When we address someone in a letter, we use a comma after their name.

Dear Alex Johnson, Dear Alex Johnson,

I really sorry about that mistake that, we shouldn't have makde it. I really sorry about that mistake, we shouldn't have made it.

I have changed it to past tense since you are talking about something you shouldn't have done in the past. I took about the middle "that", and linked the 2 thoughts in your sentence by a comma instead. This can be a good way to link 2 parts of a sentence. It is also ideal to avoid excessive repetition of words within a single sentence.

I'm really sorry about thate mistake that we shouldn't make itI made. I'm really sorry about the mistake that I made.

I'm not sure what you're referring to here. I made a correction that I think would make sense with what you might be trying to say.

I am really sorry about that mistake that we shouldn't make ithave made. I am really sorry about that mistake that we shouldn't have made.

And I also do knowunderstand what you are concerned about currently. And I also do understand what you are concerned about currently.

"Know" IS correct but "understand" may be a better word choice, to show you are sympathising with the recipient of your letter. For example, "I know you" just means you have met a person, but "I understand you" implies to understand them on a deeper level. Understanding implies a deeper level of knowledge that just knowing. Concerned not because it is past tense but because the word is always written like that, eg. I am concerned, he is concerned, they are concerned [about XYZ issue]. It is the same for words like frustrated or suprised, if you are adding the "to be" verb before it. To use "concern", you would say "I understand your concern" or "I understand you have concerns".

And I also do know what you are concerned about currently. And I also know what you are concerned about currently.

And I also do know what you are concerned about currently. And I also do know what you are concerned about currently.

WhyThe reason for the problem come out is that the plate of the solar batteryies of theis batch have a flaw that doesn't brush on average. The reason for the problem is that the plate of the solar batteries of this batch have a flaw.

"Why the problem come out" isn't something we would say. To explain a "why", you can use "the reason". Batteries is plural when referring to all the batteries in the batch. I removed the last part of the sentence as I didn't understand it and it's not needed.

Why tThe problem come out is thatstarted because the plate of the solar battery of the batch haves a flaw that doesn't brush on average. The problem started because the plate of the solar battery of the batch has a flaw that doesn't brush on average.

This sentence is a bit confusing for me. I'm not sure what you're trying to say. But "The problem started because..." is a much more natural, less clunky way to start this sentence.

I can sentd you the new solar battery template with no extra charge. I can send you the new solar battery template with no extra charge.

Sent is past tense. For present and future tenses, use send, eg. I can send, I will send, I would sent, vs I have sent

I can sentd you the new solar battery template with no extra charge. I can send you the new solar battery template with no extra charge.

send = present sent = past

And there is ono need to return the whole light you have received. And there is no need to return the whole light you have received.

Typo.

And there is ono need to return the whole light you have received. And there is no need to return the whole light you have received.

And there is ono need to return the whole light you have received. And there is no need to return the whole light you have received.

There isare two ways of how I sent to you the replacement: ship or air. There are two ways of how I sent to you the replacement: ship or air.

"There are" for plural/multiple things, "there is" for just one thing.

There isare two ways of how I sent tothat I can send you the replacement:ship ground shipping or air. There are two ways that I can send you the replacement: ground shipping or air.

There isare two ways of how I sent tocan send you the replacement: ship or air. There are two ways of how I can send you the replacement: ship or air.

It takes a long time to transport the goods by ship - that requires 25 days, while it just takes 5 days by the air only. It takes a long time to transport the goods by ship - that requires 25 days, while it just takes 5 days by the air.

Either just or only, not both. You can use a hyphen (-) or comma (,) to join 2 parts of a sentence smoothly.

It takes a long time to transport the goods by ship thaground shipping. It requires 25 days, while it justonly takes 5 days by the air onlyair. It takes a long time to transport the goods by ground shipping. It requires 25 days, while it only takes 5 days by air.

It takes a long time to transport the goods by ship, that requires 25 days while it just takes 5 days by the air only. It takes a long time to transport the goods by ship, that requires 25 days while it just takes 5 days by the air only.

I will carrytake on all the fees by the air if you choose this way to transport. I will take on all the fees by the air if you choose this way.

You take on fees or expenses, rather than carry. Fees is typically plural. To transport feels redundant here.

I will carry on all thewaive the shipping fee by the air if you choose this way tofor transport. I will waive the shipping fee by the air if you choose this way for transport.

"Waive" is a good word to use here - it means to remove the cost of something

I can add a discount coupon infor a future order. I can add a discount coupon for a future order.

Don't forget to use "a" before nouns, since you are talking about a single specific future order.

I can add a discount coupon infor a future order. I can add a discount coupon for a future order.

I can add a discount coupon in a future order. I can add a discount coupon in a future order.

lLast,ly, please confirm you r choosenice and referspecify the quantity of the products that are not good in useworking so that I can produce itfulfil your order properly. Lastly, please confirm your choice and specify the quantity of the products that are not working so that I can fulfil your order properly.

Always capitalise the first letter of a sentence. Specify would work better than refer here. Refer typically means to mention something in passing, or vaguely. Specify means to say something exact. Working is the word you need here, we would not say "good in use". Other options could be functional, operational, or usable. Orders are fulfilled. Produce (as a verb) usually means making something from scratch, eg. art or food.

last,pPlease confirm you r choosenice and refer the quantity ofo the products that are not good in use so that I can produce it propercess your replacement correctly. Please confirm your choice and refer to the products that are not good so that I can process your replacement correctly.

last, please confirm you have choosen and refer the quantity of the products that are not good in use so that I can produce it properly. last, please confirm you have chosen and refer the quantity of the products that are not good in use so that I can produce it properly.

25.12.20 25.12.20

Depending on what country you're writing to/from, there are different formats for dates. In my country (the United States) we would write the date like this: 12-20-2025.