de certo

alt-of nonstandard not-comparable

decerto の非標準スペル。

English Meaning

Nonstandard spelling of decerto.

O professor afirmou de certo que os alunos conseguiriam alcançar excelentes resultados.

先生は、生徒たちが確実に優秀な成果を上げることができると述べました.

The teacher stated that certainly the students would be able to achieve excellent results.