Ekkehard Konig 
Meaning of Focus Particles [PDF ebook] 
A Comparative Perspective

Focus particles (words such as even, only, also) play an important role in English, in various syntactic and semantic domains, but their characteristics pose numerous problems for current syntactic frameworks and semantic theories. This book presents a comprehensive analysis of the syntax, meaning and use of focus particles and related function words in English and many other languages. It also provides a historical perspective on their development.