Indirectly Speaking / What is lexico-grammar and why does it matter? Mike Guest Special to The Daily Yomiuri We've all been there before. A student comes up after class and asks something like, Why can you say both, "I'm glad you liked it" and, "I'm happy you liked it" but while you can say, "I had a happy holiday," you can't say, "I had a glad holiday"? What's the difference between the two wor..