Complete the second sentence so that it has the same meaning as the first one. Use NO MORE THAN FOUR WORDS.   I don't have her phone number, so I can't tell you.     => If I _______________

Complete the second sentence so that it has the same meaning as the first one. Use NO MORE THAN FOUR WORDS.  

I don't have her phone number, so I can't tell you.    

=> If I ________________________, I could tell you.