Entering

Preposition mistake
Preposition Mistakes
· ask to/ for/ about
· prepare/ prepare for
· share/ share with
· contact/ call to
· search/ search for
· go/ go to/ go on
· think/ think about
· check/check on/check with
· answer/respond/reply
· agree with/ to/ on/ about
· listen/ listen to
· access/ access to
· invest/ invest in
· familiar with/ to
· pay/ pay for
· grow/ grow up

Article and determiner mistakes
Article and Determiner Mistakes
· most/ most of
· on/ in/ at for time
· for/ since
· this/ last/ next replacing
· on/ in
· a/ an
· using 'the'
· on the Internet
· similar with/ to, different from/ than
· by/ until
· still/ until
· during/ for/ while
· another/ other/ the other
· besides/ except

Similar expression mistake 1
Word Set Mistakes 1
· take care of/ care for/care about
· wish/ hope
· similar/same
· price/ cost/ fee
· revenue/profit
· convenient/ comfortable
· economy/finance
· company/office/industry
· believe/ believe in/ trust

Similar expression mistake 2
Word Set Mistakes 2
· fun/ funny
· hear/listen/understand
· say/ talk/ tell/ speak/ discuss/ debate
· toilet/restroom/bathroom
· trip/travel/tour/journey/vacation
· remember/remind/memory/memorize
· lend/ loan/ borrow
· wage/salary/income/paycheck
· Complain/criticize/confront



awkward expression
Unnatural Mistakes
· I am sorry/ I feel sorry for
· answering 'or' questions
· How's your condition?
· I am (name)
· I am okay/ That’s okay/It’s okay
· Do you know ~?
· negative questions
· I don't care
· as soon as possible
· in touch
· take a rest
· I understand well.
· I'm waiting for your response.
· have a good time

Grammar Mistakes Part 1
Grammar Mistakes Part 1
· comparative sentences
· I am difficult/ hard/ easy/ convenient/ inconvenient
· seem/ seem like
· passive sentences
· using intransitive verbs
· using transitive verbs
· including questions in statements
· first/ at first/ the first time
· each/ every
· all the time/ every time
· gerunds and infinitives
· adjectives involving numbers
· using size adjectives

Grammar Mistakes Part 2
Grammar Mistakes Part 2
· explaining frequency
· using 'mean'
· your saying
· all/ every not/ not all/ every
· I am late for 5 minutes.
· one of (something)
· -ed/ -ing for adjectives
Ages, quantities, lengths of time
· using two words with the same function
· using intensifiers
· forgetting determiners
· talking 'in general'

Mistakes in vocabulary selection
Word Choice Mistakes
· question
· menu
· schedule
· shocked
· cheer up
· expect
· almost
· organize
· cheap
· appointment
· fresh
· satisfied
· matter
· moment
· overwork
· promotion
· retire
· bear
· point out

Number-related mistakes
Number Related Mistakes
· large numbers
· Decimals and rounding
· percentages
· dates
· years

Useful Business Vocabulary
Useful Business English Words
· significantly/ significant
· Positively/negatively impact
· objective/subjective
· indefinitely
· commute
· innovation
· unfortunately
· pros and cons
· commit
· hesitant
· clarify
· mandatory
· assertive
· proactive
· stand out
· micromanage
· delegate
· maximize/minimize
· elaborate
· opportunity
· scale up
· insight

What Now?!

* Recommendation for this book *

A review of Grant Sundbye, a business English tutor who analyzes Koreans' error patterns to provide optimal, personalized lessons.

I was so lucky to meet Grant!! Even though I have been working for a multinational company for many years,
I wasn't confident in my English.
However, through Grant's classes, I was able to identify the mistakes I usually make and gradually improve on them.
― Jin Hyeon-jeong
Trade Marketing Manager, Boehringer Ingelheim

Even if you can communicate the gist of what I'm saying in English, you probably need more than that.
I'm sure you'll agree.
Rather than trying to be understood as a foreigner when writing a presentation or email,
I am working on speaking and writing in English at a level that uses more professional and natural expressions.
I wanted to.
With Grant's experience and a customized curriculum tailored to Koreans, I was able to improve my English skills.
I was able to upgrade it to the next level.
If you need to use English professionally in the workplace, I 100% recommend Grant's classes.
― Jill Kim
Bakehouse (Shanghai) BD Director

While looking for a class to improve my English skills, I came across Grant's book, "4 Tips to Improve Your Speaking."
I came across an article titled:
After reading the article, I was deeply moved and enrolled in Grant's class.
...
If you are looking for English classes tailored to Koreans,
I highly recommend Grant!
- Jeongseong
LG Electronics, B2C Channel Strategy/Sales Support

I wanted to prepare for an English interview because I was planning to immigrate to the United States.
I had my English resume reviewed several times in class, which helped me prepare for interviews with more structured responses.
...
After class, I also received feedback notes to correct my speaking and grammar mistakes.
I can confidently say that he is the best English tutor I have ever met.
I highly recommend it.
― Chloe Park,
Samsung Electronics, Senior UI designer

If you're looking for a technical writing tutor, I highly recommend Grant.
From a client's perspective, you can learn a lot about how to improve your lighting in a more impressive and natural way.
And above all, he was the most astute technical writer I've ever met.
I highly recommend it to anyone preparing a resume or application documents.
Lee Geun-bae
Doosan Heavy Industries & Construction, Plant Engineering Manager

I've studied English in many different ways, but I can say that Grant's class is by far the best.
Grant's coaching style focuses on how fluently you can communicate (level) and what you want to do in the future (goal).
…the classes cover a wide range of topics and skills relevant to business situations, making them incredibly useful not only for English but also for career development.
Kim Hyung-jun
Yanolja Online Marketer

I really like that I can learn English using the topics I want.
Conversation topics range from casual conversation to business and general topics.
I highly recommend Grant's classes to anyone who doesn't have enough time to practice speaking English.
James Park
Kakao Big Data Analyst

I highly recommend Grant to anyone looking to improve their English skills for business situations.
I especially enjoyed the presentation coaching.
Through detailed coaching, I was able to prepare my English presentations more systematically and use natural expressions.
The classes were well-structured and well-prepared, so I felt like every moment was used very efficiently.
David Choe
Facebook, Marketing Science Partner

I was a typical Korean who was very awkward at speaking English, but my TOEIC score was around 700. Now, I am pursuing an MBA at UVA Darden School and interning at Microsoft.
If you want to improve your English skills, I highly recommend Grant.
I think you will find it very helpful.
Yoon Ji-hwan
Microsoft Xbox, Category Marketing MBA In

…If you need to prepare for an English interview or presentation, we can help you with everything from structure and content to review and practice.
As a professional tutor who understands the needs of learners, I received coaching focused on common mistakes Koreans make and business terminology that I couldn't get from other programs.
…
Ryan Yu
Unity Technologies, Senior eCommerce Manager


…I learned a lot of useful tips and expressions that I can use in real-life situations.
Above all, it helped me a lot because it gave me confidence in English.
Highly recommended for anyone looking to take their English communication skills to the next level.

Choi Ha-jin
Upwork, Senior Product Designer


…I've taken countless English classes, but I've never encountered a business class as systematic and efficient as Grant's.
I think it's the only class that was worth investing time in.
…
Georgina Lee
Gartner Account Executive

*Author's Note*

...
Over the past four years, I've invested significant time helping hundreds of Koreans improve their business English communication skills.
I have taught Koreans in all major fields, from beginner to near-native level.
As I coached them, I realized that most Korean adults make similar mistakes when communicating.
If you make these mistakes often, your English will become unnatural and difficult for others to understand.
While these topics are rarely addressed directly in typical English classes, fortunately, these mistakes can be corrected with simple explanations and corrections.

This book covers over 140 of the most common mistakes Koreans make and shows you how to correct them.
All the content in this book is presented in the form of "solutions," rather than simply explaining theoretical grammar principles, so that you can easily apply them to real-world workplace communication situations.
...