Understanding the Past Perfect Form "had had"

This resource explains how and why we use the form 'had had' in English. This usage can be difficult to explain and even harder for native and non-native speakers/learners to grasp as it is used less frequently these days but still seen in more formal texts. 

It is useful for those trying to teach the topic or as part of a class session.  Use the resource/information whichever way suits you and your learners get the best out of it. 

For Level 1-2 ESOL and possibly Functional Skills English

Editor's note

Best explanation I've seen of this difficult-to-grasp structure. I particularly like the way it moves on to the use of alternative main verbs to avoid the use of 'had had' and encourage more ambitious use of vocabulary. Part of Colleen's Grammar in Use series (more coming soon).