| Simple | Progressive | Perfect | Progressive |
| Present |
| I succumb |
| you succumb |
| he/she/it succumbs |
| we succumb |
| you all succumb |
| they succumb |
|
| I am succumbing |
| you are succumbing |
| he/she/it is succumbing |
| we are succumbing |
| you all are succumbing |
| they are succumbing |
|
| I have succumbed |
| you have succumbed |
| he/she/it has succumbed |
| we have succumbed |
| you all have succumbed |
| they have succumbed |
|
| I have been succumbing |
| you have been succumbing |
| he/she/it has been succumbing |
| we have been succumbing |
| you all have been succumbing |
| they have been succumbing |
|
| Past |
| I succumbed |
| you succumbed |
| he/she/it succumbed |
| we succumbed |
| you all succumbed |
| they succumbed |
|
| I was succumbing |
| you were succumbing |
| he/she/it was succumbing |
| we were succumbing |
| you all were succumbing |
| they were succumbing |
|
| I had succumbed |
| you had succumbed |
| he/she/it had succumbed |
| we had succumbed |
| you all had succumbed |
| they had succumbed |
|
| I had been succumbing |
| you had been succumbing |
| he/she/it had been succumbing |
| we had been succumbing |
| you all had been succumbing |
| they had been succumbing |
|
| Future |
| I will succumb |
| you will succumb |
| he/she/it will succumb |
| we will succumb |
| you all will succumb |
| they will succumb |
|
| I will be succumbing |
| you will be succumbing |
| he/she/it will be succumbing |
| we are succumbing |
| you all will be succumbing |
| they will be succumbing |
|
| I will have succumbed |
| you will have succumbed |
| he/she/it will have succumbed |
| we will have succumbed |
| you all will have succumbed |
| they will have succumbed |
|
| I will have been succumbing |
| you will have been succumbing |
| he/she/it will have been succumbing |
| we will have been succumbing |
| you all will have been succumbing |
| they will have been succumbing |
|
