Letters with diaeresis and another diacritic move the second diacritic to the right Example with Ǖǖ Ǘǘ Ǚǚ Ǜǜ: 
Letters with diaeresis and another diacritic move the second diacritic to the right

Example with Ǖǖ Ǘǘ Ǚǚ Ǜǜ: