| Present "astound" | I | astound | |
| Present Continuous "astound" | I | am astounding | |
| Simple past "astound" | I | astounded | |
| Past Continuous "astound" | I | was astounding | |
| Present perfect "astound" | I | have astounded | |
| Present perfect continuous "astound" | I | have been astounding | |
| Past perfect "astound" | I | had astounded | |
| Past perfect continuous "astound" | I | had been astounding | |
| Future "astound" | I | will astound | |
| Future continuous "astound" | I | will be astounding | |
| Future perfect "astound" | I | will have astounded | |
| Future perfect continuous "astound" | I | will have been astounding |