English Verb - To Observe Infinitive - to observe Present participle - observing Past participle - observed 1. Present Tense Singular I observe You observe He/she/it observes Plural We observe You observe They observe 2. Present Progressive Tense Singular I am observing You are observing He/she/it is observing Plural We are observing You are observing They are observing 3. Past Tense Singular I observed You observed He/she/it observed Plural We observed You observed They observed 4. Present Perfect Tense Singular I have observed You have observed He/she/it has observed Plural We have observed You have observed They have observed 5. Present Perfect Progressive Tense Singular I have been observing You have been observing He/she/it has been observing Plural We have been observing You have been observing They have been observing 6. Past Progressive Tense Singular I was observing You were observing He/she/it was observing Plural We were observing You were observing They were observing 7. Past Perfect Tense Singular I had observed You had observed He/she/it had observed Plural We had observed You had observed They had observed 8. Past Perfect Progressive Tense Singular I had been observing You had been observing He/she/it had been observing Plural We had been observing You had been observing They had been observing 9. Future Tense Singular I will observe You will observe He/she/it will observe Plural We will observe You will observe They will observe 10. Future Progressive Tense Singular I will be observing You will be observing He/she/it will be observing Plural We will be observing You will be observing They will be observing 11. Future Perfect Tense Singular I will have observed You will have observed He/she/it will have observed Plural We will have observed You will have observed They will have observed 12. Future Perfect Progressive Tense Singular I will have been observing You will have been observing He/she/it will have been observing Plural We will have been observing You will have been observing They will have been observing