Grammarly
Grammarly Blog: Conditional Verbs
This Grammarly Handbook resource provides the definition of conditional verbs. Numerous examples of sentences with conditional verbs are provided in this resource.
Other
Isabel's Esl Site: Past Continuous Tense
The past continuous is introduced by a little story which demonstrates its use. Examples and exercises follow. Some guidance in Spanish.
Other
Zozanga: Verbs
This is an overview of verbs. Click on Main Page to access the more detailed explanations for modal, auxiliary, regular, and irregular verbs on the right, under Grammar Lessons.