is |
am |
are |
was |
were |
remain |
appear | grow |
become |
say |
feel |
look |
seem |
sound |
smell |
taste |
http://donnayoung.org/language/pos/linking_verbs.htm
http://www.funbrain.com/verb/index.html
http://webster.commnet.edu/sensen/part1/two/verbs_app1.html
http://webster.commnet.edu/sensen/part1/two/verbs_app2.html