Examples:

• I do not understand why there are more tourists here.
• Captain, I do not understand the reason for this conflict.
• I do not understand why your father encourages this madness.
• I do not understand a lot of wheels fortune, but...
• And I do not understand very well it of your doors.
• I do not understand, is going to a party.
• I do not understand your enjoyment in breaking the law.
• I do not understand the necessity of these frequent examinations, doctor.