| Present "scrub" | I | scrub | |
| Present Continuous "scrub" | I | am scrubbing | |
| Simple past "scrub" | I | scrubbed | |
| Past Continuous "scrub" | I | was scrubbing | |
| Present perfect "scrub" | I | have scrubbed | |
| Present perfect continuous "scrub" | I | have been scrubbing | |
| Past perfect "scrub" | I | had scrubbed | |
| Past perfect continuous "scrub" | I | had been scrubbing | |
| Future "scrub" | I | will scrub | |
| Future continuous "scrub" | I | will be scrubbing | |
| Future perfect "scrub" | I | will have scrubbed | |
| Future perfect continuous "scrub" | I | will have been scrubbing |