| Simple | Progressive | Perfect | Progressive |
| Present |
| I coauthor |
| you coauthor |
| he/she/it coauthors |
| we coauthor |
| you all coauthor |
| they coauthor |
|
| I am coauthoring |
| you are coauthoring |
| he/she/it is coauthoring |
| we are coauthoring |
| you all are coauthoring |
| they are coauthoring |
|
| I have coauthored |
| you have coauthored |
| he/she/it has coauthored |
| we have coauthored |
| you all have coauthored |
| they have coauthored |
|
| I have been coauthoring |
| you have been coauthoring |
| he/she/it has been coauthoring |
| we have been coauthoring |
| you all have been coauthoring |
| they have been coauthoring |
|
| Past |
| I coauthored |
| you coauthored |
| he/she/it coauthored |
| we coauthored |
| you all coauthored |
| they coauthored |
|
| I was coauthoring |
| you were coauthoring |
| he/she/it was coauthoring |
| we were coauthoring |
| you all were coauthoring |
| they were coauthoring |
|
| I had coauthored |
| you had coauthored |
| he/she/it had coauthored |
| we had coauthored |
| you all had coauthored |
| they had coauthored |
|
| I had been coauthoring |
| you had been coauthoring |
| he/she/it had been coauthoring |
| we had been coauthoring |
| you all had been coauthoring |
| they had been coauthoring |
|
| Future |
| I will coauthor |
| you will coauthor |
| he/she/it will coauthor |
| we will coauthor |
| you all will coauthor |
| they will coauthor |
|
| I will be coauthoring |
| you will be coauthoring |
| he/she/it will be coauthoring |
| we are coauthoring |
| you all will be coauthoring |
| they will be coauthoring |
|
| I will have coauthored |
| you will have coauthored |
| he/she/it will have coauthored |
| we will have coauthored |
| you all will have coauthored |
| they will have coauthored |
|
| I will have been coauthoring |
| you will have been coauthoring |
| he/she/it will have been coauthoring |
| we will have been coauthoring |
| you all will have been coauthoring |
| they will have been coauthoring |
|
