The Phrygian mode Is the most complex and dark of the minor modes and has a very strong Spanish character. The strongest harmonic characteristic of this mode is the bII major chord. The relationships in Phrygian are Semitone, Tone, Tone, Tone, Semitone, Tone, Tone. The Phrygian mode has semitones at the root and V of the I chord or scale.
When compared to its parallel major scale: I bII bIII IV V bVI bVII. It is a tonal mode meaning that it does have a I, IV and V chord.