| Present "inquire" | I | inquire | |
| Present Continuous "inquire" | I | am inquiring | |
| Simple past "inquire" | I | inquired | |
| Past Continuous "inquire" | I | was inquiring | |
| Present perfect "inquire" | I | have inquired | |
| Present perfect continuous "inquire" | I | have been inquiring | |
| Past perfect "inquire" | I | had inquired | |
| Past perfect continuous "inquire" | I | had been inquiring | |
| Future "inquire" | I | will inquire | |
| Future continuous "inquire" | I | will be inquiring | |
| Future perfect "inquire" | I | will have inquired | |
| Future perfect continuous "inquire" | I | will have been inquiring |