1. UNIT 8 Instructions / Complex instructions

2. Imagine that you had to give instructions on how to use a patient database in a hospital:

3. You could use simple instructions using the imperative Click on the appropriate tab Enter the search criteria Click on the Find button

4. Or you could use more complex instructions: to + infinitive (answers the question WHY?) Click on the appropriate tab to find patients To start the search, click on the Find button by + -ing (answers the question HOW?) Find patients by clicking on the appropriate tab Start the search by clicking on the Find button

5. You could also use time words: First, click on the appropriate tab Then (After that / Next), enter the selection criteria Finally, click on the Find button

6. Or you could use the structures: Having done / Once X has been done Having + past participle Having clicked on the appropriate tab, enter the search criteria Having entered the search criteria, click on the Find button Once + (something) + has / have been + past participle Once the selection criteria have been entered, click on the Find button Once the search has been completed, close the program

7. To sum up: Simple instructions Click on the appropriate tab Enter the search criteria Click on the Find button Complex instructions First, click on the appropriate tab to find patients Then, enter the search criteria Once the criteria have been entered, start the search by clicking on the Find button