The same is true for the following synonyms of tired: weary, exhausted, sleepy, drained, burnt-out / burned-out. I was tired, so I didn't do my homework.We were tired, so we stopped for a rest.However, using tired alone (without the adverb too) works as the reason for doing or not doing something. In sentence number 10, the speaker probably wanted to say they were too tired to meet someone, 'too' often carries a negative meaning. A handy list of adjectives ending in -ed and -ing which may help the OP in his ESL lessons Google Books has innumerable results for bored to death, and bored to tears but none for was bored to do and only 4 instances for was bored to see And yet, bored is also a feeling or an emotion. Similarly, it is equally ungrammatical to say: “I was bored to do my homework”

“I must have been mad to see her, whatever was I thinking?” Incidentally, mad in British English usually means 'crazy', so the speaker could be complaining: ‘I was saddened to see their lack of commitment.’ All the following adjectives accept an infinite

I already to do my homework