(For Spanish language learners, "Sigue" has a U to make sure the E doesn't make the G soft. But in the subjunctive, the E becomes an A, so the U is no longer needed and disappears. "Siga" is correct.
(For Spanish language learners, "Sigue" has a U to make sure the E doesn't make the G soft. But in the subjunctive, the E becomes an A, so the U is no longer needed and disappears. "Siga" is correct.