Busyteacher.org. — 2 p.
(Автор не указан).
Level: Elementary, Pre-Intermediate.
A simple worksheet including diagrams which contrast present perfect and simple past. Only a few exercises, but something that can be easily modified to suit your needs. Includes only regular verb forms. Diagram side includes four sentence frames to add the verb form while the other side has simple verbs for creating original sentences. Will need to create context in class for this to be useful.
