Question 1

This modifier illustrates the rule that adjectives of two syllables vary. If the word ends in -y, change the y to i and add -er, -est endings. Otherwise, some two-syllable adjectives take -er, -est endings. Others take more, most and less, least.
more quickly
least dignified
prettier
larger

Right.

To determine the comparative and superlative forms of adjectives, there are specific rules to follow. Here's how to apply the rules to the examples you provided:

1. more quickly:
- quickly is a two-syllable adjective ending in -y.
- To form the comparative, change the -y to -i and add -er: quicker.
- To form the superlative, add -est: quickest.

2. least dignified:
- dignified is a two-syllable adjective, but it does not end in -y.
- To form the comparative, add -er: more dignified.
- To form the superlative, add -est: most dignified.

3. prettier:
- pretty is a two-syllable adjective ending in -y.
- To form the comparative, change the -y to -i and add -er: prettier.
- To form the superlative, change the -y to -i and add -est: prettiest.

4. larger:
- large is a two-syllable adjective, but it does not end in -y.
- To form the comparative, add -er: larger.
- To form the superlative, add -est: largest.

It's important to note that not all two-syllable adjectives follow the same rules. Some may require the use of "more" and "most" or "less" and "least" instead of -er and -est endings. The specific rule for each adjective must be determined based on its individual characteristics.