Read-Aloud Check-In #1 Partcipial adjectives 1. Adjectives ending in -ing and -ed refer to feelings. - Use an -ing adjective to describe the thing that causes the feeling. - Use an -ed adjective to describe how the person feels. 2. Prepositions often follow -ed adjectives: Eric is bored by shopping. 3. Some adjectives, like worried and relieved, have only -ed forms.