The disappearing "and" (native English pronunciation lesson)

All that you say are correct but if you don't have someone native english speaker to do a conversation with him what? are you doing? Is there any computer's program to speak with for practice. The technology nowadays is too big about everything you emagines, maybe there is a computer's program about that. Please if you know something about it advice me. I haven't anybody either native neither a friend of mine to speak english as well as a native english speaker. Thanks.

The best option is a teacher that knows pronunciation. Unfortunately, it's expensive to do that. If you have an accent that is not difficult to understand, don't worry about it? too much. The important thing is mainly the listening.

Oh, I'm sorry. I don't know if it's possible on a cellphone. Maybe you just need to wait for the video to download completely before? watching it? I'm sorry I can't be of more help.

Say, when my friend asks me: Will you please help me? should I answer: Of course I will! or Certainly I will? I guess it means almost the same, but there must be a slight difference, which doesn't let me alone.? Thank you.

Thanks? for your quick response. Cheers!!

Let's go back to your example. John is a close friend and needs help moving. John: Constantin, could you help me move? Constantin: Of course! No problem. You are his friend so it's natural that you would? help him. You wouldn't say no unless you really had to. But if John was just a coworker, not a friend, you wouldn't answer with "of course" because it's not really expected of you. Here, you could answer with "certainly" if you wanted to say "yes" enthusiastically.

You're welcome.? Glad I could help!

Thank you so much! Now? I've got it! That's really a little tricky, but you gave very intelligible explanation.Now I can use both of them consciously.

Someday there may be a computer program good enough to test your pronunciation, but not yet. Voice recognition is getting better but still? makes a lot of mistakes. I'm guessing in another 10 or 20 years, it'll be much better. However, I don't know if a computer will be able to tell you what you need to change to say something correctly.

In that? case, you can answer with either. But that does not mean that they are always interchangeable. ;) We tend to use "of course" when it's expected or obvious. For example, imagine you are on a date with a beautiful girl. At the end of the date, she asks you if she can kiss you goodnight. You don't even have to think about it, right? The answer is obvious. "Of course you can kiss me!" "Certainly" is more of an actual answer, but it's generally a polite or emphatic "yes".