kenmore washer

my washing machine will not spin or sometimes spins slow with clothes in the basket, some times i had to spin it by hand to get it started but the clothes never would get dry. what could be the problem with this, it has slowly over the last month got worse

I think a new clutch kit is in order. See this site for how to do it, it takes a little time and patience and care, but it is not difficult.

Clutch Replacement on Whirlpool and Kenmore Washers