What are the rules for forming comparatives and superlatives of adjectives ending in -ow?

What are the rules for forming comparatives and superlatives of adjectives ending in -ow?

The rules for forming comparatives and superlatives of adjectives ending in -ow are as follows:

1. For adjectives ending in -ow with one syllable, add -er to form the comparative and -est to form the superlative. For example:
- Narrow (comparative: narrower, superlative: narrowest)
- Shallow (comparative: shallower, superlative: shallowest)

2. For adjectives ending in -ow with two or more syllables, use more + adjective to form the comparative and most + adjective to form the superlative. For example:
- Borrowed (comparative: more borrowed, superlative: most borrowed)
- Followed (comparative: more followed, superlative: most followed)