PRESENT PEFERCT SIMPLE x CONTINUOUS x PAST SIMPLE

• PRESENT PERFECT SIMPLE and PRESENT PERFECT CONTINUOUS
• PAST SIMPLE and PRESENT PERFECT SIMPLE

Click on the links below and do all the exercises in your notebook. 

http://www.englishpage.com/verbpage/verbs7.htm

http://www.englishpage.com/verbpage/verbs8.htm

http://www.englishpage.com/verbpage/verbs9.htm

http://www.englishpage.com/verbpage/verbs5.htm