Whether and if

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We can generally use both whether and if to introduce indirect yes/no questions.

Cases where only whether is possible

After prepositions only whether is possible.

Before to-infinitives, only whether is possible.

See also

Want
-ward(s)
Was and were
Well and good
Whether and if
Which and what
Wish
With
Whose
Would like
Would and used to

See also

Very
Until and till
Up and down
Used to

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