30.
The Comparison of Adjectives.

The Comparative is formed by placing mais (more) or menos (less) before the Positive, as:

Obs. “Than” following the Comparative is rendered by que, como, or: tãocomo, as—as; não tãocomo, not so—as; before the particle que the word do is often prefixed, as:

The Superlative is formed

1. by placing the article before the Comparative, as:

2. by adding to the Positive issimo (masc.) and issima (fem.), as: