CREATE TABLE table_25526 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

When 'past tense' is the title who is the writer?
SELECT "Written by" FROM table_25526 WHERE "Title" = 'Past Tense'
SELECT "Written by" FROM "table_25526" WHERE "Title" = 'Past Tense'