The phrase "we doubt whether" is grammatically correct and can be used in written English.
It is typically used to introduce a statement or question expressing uncertainty or skepticism about something. Example: We doubt whether the new policies implemented by the company will actually lead to increased profits.
"We doubt whether the evidence supported such a case".
We doubt whether the new so-called mandatory sentence will prove to be a disaster on the same scale.
We doubt whether anyone needs to see more of anything done by anybody in their twenties, and in fact the whole idea of a director's cut seems suspect.
Modern medicine is a wonderful thing, but we doubt whether it ever catches up with modern man, who is way out in front and running strong.
We think you will wish to be there... we doubt whether the leaders of other political parties need to be there".
We agree that his broad vision is the right one but we doubt whether Mr Bush is able to change or has sufficient credibility to succeed, especially in the Islamic world.
Considering that Alus are active TEs in the human genome, we doubted whether other active TE families in the human genome shared a similar pattern as Alus.
If we doubted whether a title or abstract should be included or excluded, then we read the full text to make a decision.
Regarding this fact that in Iran alcohol consumption is much less than western countries, we doubted whether the demography and risk factors of NASH in Iranian populations is the same as what has been seen in previous studies.
Dickens "is a man of very 'liberal' opinions in politics," one reviewer remarked, but "we greatly doubt whether he has read or thought sufficiently long and deeply on such matters, to enable him to offer confident opinions".
We thus doubt whether the current WaveLAN based system is workable as a mobile multi-hop ad hoc test bed.
