どれも

adverb

any; all; every; both; either; none (with negative verb)

Used to refer to all items in a group, or to any one of them. With a negative verb, it means 'none of them'. The reading いずれも is slightly more formal.

• この店みせのケーキはどれも美味おいしい。

  All of the cakes in this shop are delicious.

• どれも私わたしのものではありません。

  None of these are mine.

• いずれも重じゅう要ような問もん題だいです。

  Both are important issues.