How to Speak Negative Sentences in Japanese

"So far, we consist all the sentences in a positive way. I am, this is, you are, and the questions. And we are going to learn how to make a negative sentence, using "not." Ok? So let's look at the examples. The first one is, ok, this is the core sentence: Watashi wa isha desu means, "I am a doctor." And then this part "desu" changes to "dewa arimasen." There are many ways to make a negative sentence, but so far we've learned a speech pattern. It's either ends desu, arimasu, imasu, so let's just memorize all the form changes, ok? So repeat after me: Watashi wa isha dewa arimasen. Very good. Actually, the denying part is right here. Masen. When you hear the "-masen" at the end, pretty much it's denial. And I have another example using "there is, there are." Let's say it was, Kuruma ga arimasu. That was, "There is a car." And now, you say, "There isn't a car." You say, "Kuruma ga arimasen." Yes, very similar. You use "arimasen" both times. And actually, when you use "imasu," it's the same change. The "-su" part changes to "imasen," so this end part is the denial. And also, we only use the verbs "is" "am" "are" in English, so we're going to get into the verb, then we'll learn more denials, but so far, this is the form you have to know."