main, principal
| Masculine | Feminine | |
|---|---|---|
| Singular | — | principale |
| Plural | principaux | principales |
L'exploitation minière est une des sources principales de richesse au Chili.
Mining is one of the main sources of wealth in Chile.
Sa maladie est une de ses principales inquiétudes.
His illness is one of his main worries.
Les deux machines principales en avant toute.
The two main machines are going full speed ahead.
— Le Bateau (1981)