| Presente (Present) "demonstrate" | I | demonstrate | |
| Presente Progressivo (Present Continuous) "demonstrate" | I | am demonstrating | |
| Passato semplice (Simple past) "demonstrate" | I | demonstrated | |
| Past Continuous (Past Continuous) "demonstrate" | I | was demonstrating | |
| Regalo perfetto (Present perfect) "demonstrate" | I | have demonstrated | |
| Trapassato prossimo (Present perfect continuous) "demonstrate" | I | have been demonstrating | |
| Passato perfetto (Past perfect) "demonstrate" | I | had demonstrated | |
| Trapassato remoto (Past perfect continuous) "demonstrate" | I | had been demonstrating | |
| Futuro (Future) "demonstrate" | I | will demonstrate | |
| Trapassato remoto (Future continuous) "demonstrate" | I | will be demonstrating | |
| Futuro perfetto (Future perfect) "demonstrate" | I | will have demonstrated | |
| Congiuntivo (Future perfect continuous) "demonstrate" | I | will have been demonstrating |