| singular | plural |
| Infinitive | | |
| invent | |
| present simple | | |
| 1 | I invent | we invent |
| 2 | you invent | you invent |
| 3 | he/she/it invents | they invent |
| past simple | | |
| 1 | I invented | we invented |
| 2 | you invented | you invented |
| 3 | he/she/it invented | they invented |
| future simple | | |
| 1 | I will/shall invent | we will/shall invent |
| 2 | you will/shall invent | you will/shall invent |
| 3 | he/she/it will/shall invent | they will/shall invent |
| conditional simple | | |
| 1 | I would invent | we would invent |
| 2 | you would invent | you would invent |
| 3 | he/she/it would invent | they would invent |
| present continuous | | |
| 1 | I am inventing | we are inventing |
| 2 | you are inventing | you are inventing |
| 3 | he/she/it is inventing | they are inventing |
| past continuous | | |
| 1 | I was inventing | we were inventing |
| 2 | you were inventing | you were inventing |
| 3 | he/she/it was inventing | they were inventing |
| future continuous | | |
| 1 | I will be inventing | we will be inventing |
| 2 | you will be inventing | you will be inventing |
| 3 | he/she/it will be inventing | they will be inventing |
| conditional continuous | | |
| 1 | I would be inventing | we would be inventing |
| 2 | you would be inventing | you would be inventing |
| 3 | he/she/it would be inventing | they would be inventing |
| present perfect | | |
| 1 | I have invented | we have invented |
| 2 | you have invented | you have invented |
| 3 | he/she/it has invented | they have invented |
| past perfect | | |
| 1 | I had invented | we had invented |
| 2 | you had invented | you had invented |
| 3 | he/she/it had invented | they had invented |
| future perfect | | |
| 1 | I will have invented | we will have invented |
| 2 | you will have invented | you will have invented |
| 3 | he/she/it will have invented | they will have invented |
| conditional perfect | | |
| 1 | I would have invented | we would have invented |
| 2 | you would have invented | you would have invented |
| 3 | he/she/it would have invented | they would have invented |