How to Use 501 Spanish Verbs (a book filled with conjugations) - YouTube
Amazon.com: 501 Spanish Verbs with CD-ROM and Audio CD (501 Verb Series): 9780764197970: Christopher Kendris, Theodore Kendris: Books
501 Spanish Verbs Fully Conjugated in All the Tenses in a New Easy-To-Learn Format, Alphabetically Arranged (Paperback - Used) 0764135597 9780764135590 - Walmart.com
Amazon.com: 501 Spanish Verbs with CD-ROM and Audio CD (501 Verb Series): 9780764197970: Christopher Kendris, Theodore Kendris: Books