Form 8b. Past Perfect vs Past Perfect Continuous

Practicing Past Perfect:

https://engelsklaslokaal.nl/en/english-grammar-exercises/one-english-verb-form/past-perfect/;

Practicing Past Perfect Continuous/Progressive:

https://engelsklaslokaal.nl/en/english-grammar-exercises/one-english-verb-form/past-perfect-continuous/;

Practicing Past Perfect vs Past Perfect Continuous:

https://elt.oup.com/student/solutions/upperint/grammar/grammar_02_022e?cc=lt&selLanguage=en;

http://speakspeak.com/english-grammar-exercises/upper-intermediate/past-perfect-simple-vs-past-perfect-continuous;

http://www.tinyteflteacher.co.uk/learning-english/grammar/exercises/past-perfect-2.html;

https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-9553.php;

https://www.englishpage.com/verbpage/verbs13.htm.

QUIZ:
http://englishtenses.eu/past-perfect-past-perfect-continuous-exercise/.