Week 2 - Long a and Long i

Long a and i:
Long a is sometimes spelled ai, eigh, or ay: braid, weigh, spray. 
Long i is sometimes spelled igh: sigh.

sigh
right
weigh
eight
detail
height
spray
braid
bait
grain
slight
thigh
tight
raisin
trait
highway
frighten
dismay
freight
sleigh

CHALLENGE WORDS
eighteen
mayonnaise
campaign
daylight
twilight