Future Perfect Continuous 

Clink on this link and study the form of this tense!

https://www.grammarly.com/blog/future-perfect-continuous-tense/

What are the SIGNAL WORDS that go with this tense? 

By …, when, before etc

Do we use the future perfect continuous for continuing situations up to a certain time with action verbs?

Does the future perfect continuous emphasise the duration of the action?

How long will you have been paying your taxes before you retire?

How long will you have been going to your favourite restaurant by the end of this year?