| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | operate | operate | operates | operate | operate | operate |
| Present continuous | am operating | are operating | is operating | are operating | are operating | are operating |
| Simple past | operated | operated | operated | operated | operated | operated |
| Past continuous | was operating | were operating | was operating | were operating | were operating | were operating |
| Simple future | will operate | will operate | will operate | will operate | will operate | will operate |
| Future continuous | will be operating | will be operating | will be operating | will be operating | will be operating | will be operating |
| Present perfect | have operated | have operated | has operated | have operated | have operated | have operated |
| Present perfect continuous | have been operating | have been operating | has been operating | have been operating | have been operating | have been operating |
| Present continuous | am operating | are operating | is operating | are operating | are operating | are operating |
| Past perfect | had operated | had operated | had operated | had operated | had operated | had operated |
| Past perfect continuous | had been operating | had been operating | had been operating | had been operating | had been operating | had been operating |
| Future perfect | will have operated | will have operated | will have operated | will have operated | will have operated | will have operated |
| Future perfect continuous | will have been operating | will have been operating | will have been operating | will have been operating | will have been operating | will have been operating |
| sg1st | sg2nd | sg3rd | pl1st | pl2nd | pl3rd | |
|---|---|---|---|---|---|---|
| Simple present | don't operate | don't operate | doesn't operate | don't operate | don't operate | don't operate |
| Present continuous | am not operating | are not operating | is not operating | are not operating | are not operating | are not operating |
| Simple past | didn't operate | didn't operate | didn't operate | didn't operate | didn't operate | didn't operate |
| Past continuous | was not operating | were not operating | was not operating | were not operating | were not operating | were not operating |
| Simple future | won't operate | won't operate | won't operate | won't operate | won't operate | won't operate |
| Future continuous | will not be operating | will not be operating | will not be operating | will not be operating | will not be operating | will not be operating |
| Present perfect | have not operated | have not operated | has not operated | have not operated | have not operated | have not operated |
| Present perfect continuous | have not been operating | have not been operating | has not been operating | have not been operating | have not been operating | have not been operating |
| Present continuous | am not operating | are not operating | is not operating | are not operating | are not operating | are not operating |
| Past perfect | had not operated | had not operated | had not operated | had not operated | had not operated | had not operated |
| Past perfect continuous | had not been operating | had not been operating | had not been operating | had not been operating | had not been operating | had not been operating |
| Future perfect | will have not operated | will have not operated | will have not operated | will have not operated | will have not operated | will have not operated |
| Future perfect continuous | will have not been operating | will have not been operating | will have not been operating | will have not been operating | will have not been operating | will have not been operating |