y....all others come just two letters after every vovels..
D
The letter that does not belong in the series H D R YL is "R." The other letters can be seen as initials of colors: H for Hue, D for Dark, Y for Yellow, and L for Light. R does not fit into this color categorization, making it the odd one out.
d
The next letter in the series d, h, l, p follows a pattern where each letter is separated by an increasing number of spaces: d (+4) = h, h (+4) = l, l (+4) = p. Continuing this pattern, p (+4) gives us t. Therefore, the next letter in the series is t.
K - The pattern is to skip one letter of the alphabet in between each - between D and F there would usually be a "D", between F and H a "G" and so on.
E
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern H-D---H-. That is, eight letter words with 1st letter H and 3rd letter D and 7th letter H. In alphabetical order, they are: hadedahs
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern H-D--H--. That is, eight letter words with 1st letter H and 3rd letter D and 6th letter H. In alphabetical order, they are: hedgehog hedgehop
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern H-A-H--D. That is, eight letter words with 1st letter H and 3rd letter A and 5th letter H and 8th letter D. In alphabetical order, they are: hoarhead
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern H-D--D--. That is, eight letter words with 1st letter H and 3rd letter D and 6th letter D. In alphabetical order, they are: hydrides
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern D-A-H-D. That is, seven letter words with 1st letter D and 3rd letter A and 5th letter H and 7th letter D. In alphabetical order, they are: deashed
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern H--D-I-D-. That is, nine letter words with 1st letter H and 4th letter D and 6th letter I and 8th letter D. In alphabetical order, they are: headwinds