Meaning
「I'm pretty sure」は、何かについてかなり確信しているという意味を表します。完全に確信するわけではないが、ほぼ間違いないと感じている時に使います。
例えば、友人が新しい映画を観たかどうかを確認する際に、「I'm pretty sure he's seen it.」（彼はその映画を観たと思うよ）といった形で使用します。この表現は、会話の中で自分の意見や判断を述べる際に便利です。
「I'm pretty sure」は日常会話で頻繁に使われ、話し手が自信を持っていることを示しながらも、100%の確信がないことを柔軟に伝えることができます。
Today's Sentences
- I’m pretty sure this is broken.
- I’m pretty sure it’s going to rain.
- I’m pretty sure the stadium is packed.
- I’m pretty sure I have to buy a new dress.
- I’m pretty sure it’s harmful for the environment.
- Writer's Note
01
I’m pretty sure this is broken.
Situation 1
Is something wrong with the toaster?
The bread comes out burnt.
I’m pretty sure this is broken.
これは壊れていると思います。
I’ll take a look at it when I get back from work.
If it’s unfixable, I guess we need to get a new one.
Situation 2
What are you looking at?
I’m looking at our vacuum cleaner.
Why?
I’m pretty sure this is broken.
It keeps spitting out the dust that it picks up.
拾い上げたホコリを吐き出し続けています。
02
I’m pretty sure it’s going to rain.
Situation 1
It’s really cloudy today.
I’m pretty sure it’s going to rain.
Well, you look different.
What’s with your hair?
髪はどうしたの？
Well, I'll buy you a coffee if I’m wrong.
Situation 2
Why did you bring an umbrella?
I’m pretty sure it’s going to rain.
I do see some clouds coming in.
I always sense a sweet smell in the air right before it rains.
And today is one of those days.
そして今日はまさにそのような日です。
03
I’m pretty sure the stadium is packed.
Situation 1
I can’t believe we got tickets to the game today.
We’re super lucky.
I’m pretty sure the stadium is packed.
スタジアムが満員であると確信しています。
I wonder how many seats are left.
I overheard someone say it’s a sold out game.
Situation 2
It's my first time in the luxury box.
Me too.
My boss was really happy to give us tickets for the game.
上司が試合のチケットをくれて、本当に嬉しかったです。
Look at all the people pouring into the stadium.
I’m pretty sure the stadium is packed tonight’s game.
04
I’m pretty sure I have to buy a new dress.
Situation 1
So when are you meeting your new man?
We’re going out for dinner on Friday night.
What are you going to wear?
I’m pretty sure I have to buy a new dress.
Situation 2
Are you ready for your interview?
I am.
I’ve gone over so many mock situations.
私は多くの模擬状況を経験しました。
What will you wear?
I’m pretty sure I have to buy a new dress.
Everything I have looks so old.
手持ちのものはすべてとても古く見えます。
05
I’m pretty sure it’s harmful for the environment.
Situation 1
Did you see those pictures of the garbage washed up on the beach?
I did. There was so much plastic.
I’m pretty sure it’s harmful for the environment.
環境に有害であると確信しています。
Honestly, the ocean is being poisoned with all this waste.
I agree.
I feel so bad for the animals who suffer from it.
それによって苦しんでいる動物たちが本当に気の毒です。
Situation 2
What’s that floating on the water?
It kinda looks like oil.
I’m pretty sure it’s harmful for the environment.
I think so too.
Let’s call and report this.
電話してこれを報告しましょう。
Writer's Note
To be "pretty sure" of something means that you are quite confident that something is true; or at least 'close to certain'. We cannot really measure how true something is but we can infer that what they say is somewhat or entirely truthful. However, it is important to note that you should always consider the stress, pitch, and volume to determine whether their claims are true or not. Here are some alternatives and I'm certain they are interchangeable with "I'm pretty sure".
- I'm fairly certain
- I'm confident
- I believe
- I'm almost positive
- I have a strong feeling
- I have no doubt
- I know for a fact
Go ahead! Use the sentences above or make up your own awesome sentences and practice, practice, practice!
