I think it necessary that we (should) drink enough water every day.

[diamondcutter]

I think it necessary that we should drink enough water every day.
I think it necessary that we drink enough water every day.
(By me)

I’d like to know if both sentences are correct.

 

[tedmc]

I think it necessary is not correct.

I think it is necessary that we drink enough water every day.
I think it is necessary to drink enough water every day.

 

[emsr2d2]

They're unnatural and unnecessarily wordy. Why do you need to use such a complicated sentence to say "It's important to drink enough water every day"?