1. The coming book 

Dhyan Manik: Mastering Thai Tenses and Grammar with lɛ́ɛu แล้ว – Book I

Check out our You Tube video about

The Thai time aspects and the five different types of verb groups with lɛ́ɛu แล้ว

https://www.youtube.com/watch?v=U-qip1E-xjo