Examples:

• This is very difficult to do 100 kilometers away.
• This is very difficult, but I think I have to ask.
• This is very difficult for me, Catherine.
• This is very difficult for me to grasp.
• This is very difficult to explain, okay?
• This is very difficult, to change these things.
• This is very difficult to achieve with nursery seedlings.
• And I followed him inside, and... This is very difficult./li>