Write the comparative form : 3. 5. 6. 8. 11. 12. 13.

3. Kind - kinder - the kindest
5. Clever - cleverer - the cleverest
6. Intelligent - more intelligent - the most intelligent
8. Interesting - more interesting - the most interesting
11. Sweet - sweeter - the sweetest
12. Boring - more boring - the most boring
13. Ugly - uglier - the ugliest