I have a question about the following sentence - 

> 
> "I'm sorry I was so late getting back to you." 
> 
> 
> 

Is it possible to say that -

> 
> "I'm sorry I was so late to get back to you."
> 
> 
> 

About the first sentence I'm not sure about the grammar structure. If there is any difference between two sentences, could you explain that?