By Demonstrative Adjectives, Plurals

Hi, I am afraid I phrased my question wrongly. I meant to ask about the use of a plural for the past participle. A search through the OED gives only 2 results for words ending in "eds", i.e. "undecideds" and "intendeds", this latter example being quite old (Dickens, 1838). Webster's ...

Hi, 'That' can be a demonstrative pronoun, eg Look at that. 'That' can be a demonstrative adjective, eg Look at that tiger. The plural form is 'those', eg Look at those tigers. 'That' can be a conjunction introducing a subordinate clause, eg Tom knows that Mary loves her. Now let's simplify...

These cover most instances: (1) When the noun is plural and is referring to all like items generally: 'Lions are big cats'. (2) When the noun is uncountable and is referring to all like substances generally: 'Sugar is sweet'. (3) When the noun is preceded by another determiner-- a...