| Simple | Progressive | Perfect | Progressive |
| Present |
| I diffuse |
| you diffuse |
| he/she/it diffuses |
| we diffuse |
| you all diffuse |
| they diffuse |
|
| I am diffusing |
| you are diffusing |
| he/she/it is diffusing |
| we are diffusing |
| you all are diffusing |
| they are diffusing |
|
| I have diffused |
| you have diffused |
| he/she/it has diffused |
| we have diffused |
| you all have diffused |
| they have diffused |
|
| I have been diffusing |
| you have been diffusing |
| he/she/it has been diffusing |
| we have been diffusing |
| you all have been diffusing |
| they have been diffusing |
|
| Past |
| I diffused |
| you diffused |
| he/she/it diffused |
| we diffused |
| you all diffused |
| they diffused |
|
| I was diffusing |
| you were diffusing |
| he/she/it was diffusing |
| we were diffusing |
| you all were diffusing |
| they were diffusing |
|
| I had diffused |
| you had diffused |
| he/she/it had diffused |
| we had diffused |
| you all had diffused |
| they had diffused |
|
| I had been diffusing |
| you had been diffusing |
| he/she/it had been diffusing |
| we had been diffusing |
| you all had been diffusing |
| they had been diffusing |
|
| Future |
| I will diffuse |
| you will diffuse |
| he/she/it will diffuse |
| we will diffuse |
| you all will diffuse |
| they will diffuse |
|
| I will be diffusing |
| you will be diffusing |
| he/she/it will be diffusing |
| we are diffusing |
| you all will be diffusing |
| they will be diffusing |
|
| I will have diffused |
| you will have diffused |
| he/she/it will have diffused |
| we will have diffused |
| you all will have diffused |
| they will have diffused |
|
| I will have been diffusing |
| you will have been diffusing |
| he/she/it will have been diffusing |
| we will have been diffusing |
| you all will have been diffusing |
| they will have been diffusing |
|
