On this page, you can learn Japanese grammar to talk about what many people think.
Sentence pattern
Many people think + sentence
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sentence + と思う人は多いです
思 → おも、人 → ひと、多 → おお
Note
The sentence in front of と思う人は多いです must finish with Plain Form.
【Japanese Grammar】Basic conjugation for verbs and adjectives (Plain Form)
Let's learn four basic conjugation endings for Japanese verbs and adjectives in Plain Form: Present Positive Form, Present Negative Form, Past Positive Form and...
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Example
Many people think that Japanese people eat sushi every day.
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日本人は毎日すしを食べると思う人は多いです。
Many people think that Japanese cars are wonderful.
↓
日本の車はすばらしいと思う人は多いです。
Note
‘Many people think’ in Japanese is ‘たくさんの人々（ひとびと）は思います’, so it is not wrong to say とたくさんの人々は思います instead of と思う人は多いです.
However, と思う人は多いです is more natural.