| Present "croak" | I | croak | |
| Present Continuous "croak" | I | am croaking | |
| Simple past "croak" | I | croaked | |
| Past Continuous "croak" | I | was croaking | |
| Present perfect "croak" | I | have croaked | |
| Present perfect continuous "croak" | I | have been croaking | |
| Past perfect "croak" | I | had croaked | |
| Past perfect continuous "croak" | I | had been croaking | |
| Future "croak" | I | will croak | |
| Future continuous "croak" | I | will be croaking | |
| Future perfect "croak" | I | will have croaked | |
| Future perfect continuous "croak" | I | will have been croaking |