to certify, to verify, to make sure
| Singular | Plural | |
|---|---|---|
| First | certificar | — |
| Third | certificar | — |
Eu quero me certificar de que eu sei o que fazer.
I want to make sure I know what to do.
Você poderia se certificar de que o Tom está bem?
Could you make sure Tom is okay?
Let's make sure.