Must and Have to

 

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MUST

Again, some ESL students find modals a bit confusing. The most confusing of all, according to them, is the modal MUST.

The modal MUST can be used in multiple ways.

First, we use MUST when we want to say that it is absolutely necessary to do something. This is the same as HAVE TO.

 Please note the following examples:

I must submit my homework tomorrow.

(In this situation, it is really, really necessary to submit your homework. If you don’t submit your homework, your teacher will be upset, and you will get a very low grade. )

Jack has diabetes. He must exercise and he must stop eating too much sugar.

In the examples given above, the modal MUST can be substituted by HAVE TO.

Examples:

I have to submit my homework tomorrow. = I must submit my homework tomorrow.

He must exercise.= He has to exercise.

He must stop eating too much sugar.= He has to stop eating too much sugar.

Second, we use MUST when we express a guess, but a very logical guess, because it is based on fact. Sounds confusing? Sorry. Ha ha ha. Let me just give you some examples so that we can imagine the situation.

Jack: I live just 100 meters away from the airport.

Jane: Really?! Your place must be really noisy!

Jack did not tell Jane that it’s so noisy in his place, but of course, Jane can imagine the situation, she guessed that Jack’s place is really noisy, based on the fact that airplanes make a lot of noise when landing and taking off, and Jack lives near that place.

 Another example:

 Jack: I have been working for 12 hours.

Jane: Oh Jack, you must be really tired.

Jack did not tell Jane that he is really tired, but of course, we know that if we work for 12 hours, we get really, really tired.  In Jane’s answer, she was sure, she was convinced, that Jack was really tired. 

JAPANESE TRANSLATION By: Google Translate

MUST

しなければならない

 繰り返しになりますが、一部のESL学生は、モーダルが少し混乱していると感じています。彼らによると、すべての中で最も混乱しているのはモーダルMUSTです。

 モーダルMUSTは複数の方法で使用できます。

まず、何かをすることが絶対に必要だと言いたいときは、MUSTを使います。これはHAVETOと同じです。

 次の例に注意してください。

 I must submit my homework tomorrow.

（この場合、宿題を提出する必要があります。宿題を提出しないと、先生が動揺し、成績が非常に低くなります。）

 Jack has diabetes. He must exercise and he must stop eating too much sugar.

 上記の例では、モーダルMUSTをHAVETOに置き換えることができます。

例：

I have to submit my homework tomorrow. = I must submit my homework tomorrow.

He must exercise.= He has to exercise.

He must stop eating too much sugar.= He has to stop eating too much sugar.

 

次に、推測を表現するときにMUSTを使用しますが、事実に基づいているため、非常に論理的な推測です。紛らわしいですか？ごめんなさい。ハハハ。状況を想像できるように、いくつか例を挙げましょう。

Jack: I live just 100 meters away from the airport.

Jane: Really?! Your place must be really noisy!

 ジャックはジェーンに自分の場所がとても騒がしいとは言いませんでしたが、もちろん、ジェーンは状況を想像することができます。飛行機が着陸と離陸のときに大きな音を立てるという事実に基づいて、ジャックの場所は本当に騒がしいと推測しました。ジャックはその場所の近くに住んでいます。

 もう一つの例：

 Jack: I have been working for 12 hours.

Jane: Oh Jack, you must be really tired.

 ジャックはジェーンに本当に疲れているとは言いませんでしたが、もちろん、12時間働くと、本当に本当に疲れます。ジェーンの答えでは、彼女はジャックが本当に疲れていると確信していました

この投稿を読んでいただきありがとうございます！今後さらに文法のレッスンがあります！ ^^