What do the following words have in common?

WEED
HEEL
EYED
AISLE
WHEEL
HEED
YULE

HINT:
Think phonetically.

Answers:

They are the phonetic equivalents of common contractions:

WEED - WE'D
HEEL - HE'LL
EYED - I'D
AISLE - I'LL
WHEEL - WE'LL
HEED - HE'D 
YULE - YOU'LL