Structurally, for instance, soo-da 'seem' and gat-teiru 'showing the signs of' in (7a) are attached to the stem forms of the emotion adjectives and thus replace the -i inflectional ending of these adjectives.
yoo-da 'it appears that' in (7b) and no-da 'it is that' in (7c) are attached to the finite forms of emotion adjectives.