A very helpful verb book (just verbs) for beginners is:
Briathra na Gaeilge (Irish Verbs)
le Déaglán Ó Murchú B.A. agus Pádraig Ó Murchú B.A.
ISBN 0861216490
http://www.litriocht.com/shop/product_info.php?manufacturers_id=&products_id=795 The book shows full conjugations of verbs plus other verbs that conjugate like the model verb.