The answer is yes and yell.
There are no English pronouns that start with the letter Z. The furthest letter that English pronouns can start with is Y.
y-axis
yummy
Yes
YELLING
Younger
Yogast
Yummy, yucky, yolky and yabby are some of the sweet words that start with the letter y.
Some four letter words that start with Y are:yankyardyarnyawnyeahyearyellyelpyipeyogayokeyolkyoreyouryowlyuckyuleyurt
yawning
Yodel
youthful