Simple Present Tense

Present Simple Tense - English grammar tutorial video lesson

Present Simple Tense - English grammar tutorial video lesson

PAST PERFECT VS SIMPLE PAST

PRACTICE Simple Past vs Past Progressive

http://www.englisch-hilfen.de/en/exercises/tenses/simple_past_progressive2.htm
https://elt.oup.com/student/project3rdedition/level5/unit1/grammar/exercise1?cc=us&selLanguage=en
http://www.englishexercises.org/makeagame/viewgame.asp?id=734
http://www.5minuteenglish.com/mar10.htm

Past Simple and Past Continuous - English grammar tutorial video lesson

SIMPLE PAST VS PAST PROGRESSIVE