Lesson Progress: ← Back to Unit Level 4 Unit 2 Lesson02: Their Plane Had Already ArrivedLEARNING OBJECTIVES By the end of this lesson, you will be able to: Use the words «for» and «since» with the past perfect. Use the adverbs «yet, already, ever, never» with the past perfect. DOWNLOADABLE CONTENT Grammar Notes Glossary Pronunciación LINKS Cambridge Dictionary Examples: Past Perfect Signal Words QuizzesStatus 1 Grammar Quiz_L4U2L02 2 Lesson Quiz_L4U2L02 3 Self Evaluation_L4U2L02 ← Previous Lesson