If i'm being completely honest vs To be honest

When to use each in English, with meaning, register, and examples.

If i'm being completely honest

Top 3,000 (common)

To be honest

InformalTop 2,000 (common)
Most formal: If i'm being completely honestMost common: To be honest
 If i'm being completely honestTo be honest
Pronunciation🇬🇧 //ɪf aɪm ˈbiːɪŋ kəmˈpliːtli ˈɒnɪst//🇺🇸 //ɪf aɪm ˈbiɪŋ kəmˈpliːtli ˈɑːnɪst//🇬🇧 //tə biː ˈɒnɪst//🇺🇸 //tə bi ˈhɑnəst//
MeaningWhen I tell the truth without holding back.Saying the truth or what you really think.
ExampleIf I'm being completely honest, I didn't enjoy the movie at all.To be honest, I didn’t really enjoy the movie.
RegisterNeutralInformal
How commonTop 3,000 (common)Top 2,000 (common)
Collocationsbeing completely honest, if I'm honest, to speak honestlyto be honest with you, to be honest, I think, to be honest about
Antonymsif I'm being dishonest, if I'm lying-
Common mistakesOmitting 'if' at the beginning of the phrase., Using it in overly formal situations., Misplacing the phrase within the sentence.Using it too frequently can sound disingenuous., Confusing it with more formal phrases like 'frankly speaking'.
Usage notesOften used to express sincerity before sharing a personal opinion. Avoid in very formal contexts.Use 'to be honest' to express your true feelings. It's informal and often used in conversations, but avoid in formal settings.

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If i'm being completely honest
To be honest

Frequently asked questions: If i'm being completely honest vs To be honest

What's the difference between If i'm being completely honest and To be honest?

If i'm being completely honest: When I tell the truth without holding back. To be honest: Saying the truth or what you really think.

Which is more formal: If i'm being completely honest and To be honest?

If i'm being completely honest is the most formal of these.

Which is more common: If i'm being completely honest and To be honest?

To be honest is the most common in everyday English.

Can you show an example of each?

If i'm being completely honest: If I'm being completely honest, I didn't enjoy the movie at all. To be honest: To be honest, I didn’t really enjoy the movie.

Can I use If i'm being completely honest and To be honest interchangeably?

Not always. If i'm being completely honest and To be honest are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.