| Cadeau (Present) "concentrate" | I | concentrate | |
| Onvoltooid tegenwoordige tijd (Present Continuous) "concentrate" | I | am concentrating | |
| Onvoltooid verleden tijd (Simple past) "concentrate" | I | concentrated | |
| Onvoltooid verleden tijd (Past Continuous) "concentrate" | I | was concentrating | |
| Voltooid tegenwoordige tijd (Present perfect) "concentrate" | I | have concentrated | |
| Tegenwoordige tijd continue (Present perfect continuous) "concentrate" | I | have been concentrating | |
| Voltooid verleden tijd (Past perfect) "concentrate" | I | had concentrated | |
| Past perfect continue (Past perfect continuous) "concentrate" | I | had been concentrating | |
| Toekomst (Future) "concentrate" | I | will concentrate | |
| Future continue (Future continuous) "concentrate" | I | will be concentrating | |
| Toekomst perfect (Future perfect) "concentrate" | I | will have concentrated | |
| Future perfect continue (Future perfect continuous) "concentrate" | I | will have been concentrating |