I don't know how to express my thanks.

Source: Tatoeba

Not knowing what answer to make, I kept silent.

Source: Tatoeba

I didn't know that he was there.

Source: Tatoeba

I have no idea of what to do.

Source: Tatoeba

I don't know if that's what Tom wants or not.

Source: Tatoeba

I don't know what I should be doing right now.

Source: Tatoeba

"Can you move over a bit?" "Yeah, sorry, I didn't realize I took up that much space."

Source: Tatoeba

I didn't know where it came from.

Source: Tatoeba

I wonder if he'll come tonight.

I don't know if he can come tonight.

Source: Tatoeba

No matter who it was that wrote this book, he's very clever.

Source: Tatoeba

I don't know how to go there.

Source: Tatoeba

I don't know what to do.

Source: Tatoeba

Oh, I don't know if I agree with you.

Source: Tatoeba

I didn't know that he was Japanese.

Source: Tatoeba

I don't know what day he'll come.

Source: Tatoeba

I didn't know the city, and what's more, I couldn't speak a word of the language.

Source: Tatoeba

I don't know where he is.

Source: Tatoeba

I don't know if I can go to the party.

Source: Tatoeba

I don't know if I'll have time to do it.

I don't know if I have time to do it.

Source: Tatoeba

Oh, I don't know.

Source: Tatoeba

I don't know where my watch is.

Source: Tatoeba

I didn't know he drank so much.

Source: Tatoeba

I don't know who you are.

Source: Tatoeba

I don't know, go to sleep!

Source: Tatoeba

I have no idea what Tom needs to do.

Source: Tatoeba

I don't know when he will come.

Source: Tatoeba

I don't know when my mother will come back.

Source: Tatoeba

I don't know whether she will come.

Source: Tatoeba

I wonder why he did that.

Source: Tatoeba

I don't know what time he can come.

I don't know when he can come.

Source: Tatoeba