Regular verb: observe - observed - observed
Present | Present continuous | Preterite | Preterite continuous |
don't I observe? don't you observe? doesn't he observe? don't we observe? don't you observe? don't they observe? | am I not observing? aren't you observing? isn't he observing? aren't we observing? aren't you observing? aren't they observing? | didn't I observe? didn't you observe? didn't he observe? didn't we observe? didn't you observe? didn't they observe? | wasn't I observing? weren't you observing? wasn't he observing? weren't we observing? weren't you observing? weren't they observing? |
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous |
haven't I observed? haven't you observed? hasn't he observed? haven't we observed? haven't you observed? haven't they observed? | haven't I been observing? haven't you been observing? hasn't he been observing? haven't we been observing? haven't you been observing? haven't they been observing? | hadn't I observed? hadn't you observed? hadn't he observed? hadn't we observed? hadn't you observed? hadn't they observed? | hadn't I been observing? hadn't you been observing? hadn't he been observing? hadn't we been observing? hadn't you been observing? hadn't they been observing? |
Future | Future continuous | Future perfect | Future perfect continuous |
won't I observe? won't you observe? won't he observe? won't we observe? won't you observe? won't they observe? | won't I be observing? won't you be observing? won't he be observing? won't we be observing? won't you be observing? won't they be observing? | won't I have observed? won't you have observed? won't he have observed? won't we have observed? won't you have observed? won't they have observed? | won't I have been observing? won't you have been observing? won't he have been observing? won't we have been observing? won't you have been observing? won't they have been observing? |
Present | Present continuous | Past | Past continuous |
wouldn't I observe? wouldn't you observe? wouldn't he observe? wouldn't we observe? wouldn't you observe? wouldn't they observe? | wouldn't I be observing? wouldn't you be observing? wouldn't he be observing? wouldn't we be observing? wouldn't you be observing? wouldn't they be observing? | wouldn't I have observed? wouldn't you have observed? wouldn't he have observed? wouldn't we have observed? wouldn't you have observed? wouldn't they have observed? | wouldn't I have been observing? wouldn't you have been observing? wouldn't he have been observing? wouldn't we have been observing? wouldn't you have been observing? wouldn't they have been observing? |
Infinitive | Imperative |
Infinitive | Imperative | ||
to observe | - - - |
Present | Past | ||
observing | observed |