| Present "excrete" | I | excrete | |
| Present Continuous "excrete" | I | am excreting | |
| Simple past "excrete" | I | excreted | |
| Past Continuous "excrete" | I | was excreting | |
| Present perfect "excrete" | I | have excreted | |
| Present perfect continuous "excrete" | I | have been excreting | |
| Past perfect "excrete" | I | had excreted | |
| Past perfect continuous "excrete" | I | had been excreting | |
| Future "excrete" | I | will excrete | |
| Future continuous "excrete" | I | will be excreting | |
| Future perfect "excrete" | I | will have excreted | |
| Future perfect continuous "excrete" | I | will have been excreting |