| Present Tense | Past Tense | Future Tense |
|---|---|---|
| I brighten | I brightened | I shall/will brighten |
| We brighten | We brightened | We shall/will brighten |
| You brighten | You brightened | You will brighten |
| He brightens | He brightened | He will brighten |
| She brightens | She brightened | She will brighten |
| It brightens | It brightened | It will brighten |
| They brighten | They brightened | They will brighten |
| Present Continuous | Past Continuous | Future Continuous |
|---|---|---|
| I am brightening | I was brightening | I shall/will be brightening |
| We are brightening | We were brightening | We shall/will be brightening |
| You are brightening | You were brightening | You will be brightening |
| He is brightening | He was brightening | He will be brightening |
| She is brightening | She was brightening | She will be brightening |
| It is brightening | It was brightening | It will be brightening |
| They are brightening | They were brightening | They will be brightening |
| Present Perfect | Past Perfect | Future Perfect |
|---|---|---|
| I have brightened | I had brightened | I shall/will have brightened |
| We have brightened | We had brightened | We shall/will have brightened |
| You have brightened | You had brightened | You will have brightened |
| He has brightened | He had brightened | He will have brightened |
| She has brightened | She had brightened | She will have brightened |
| It has brightened | It had brightened | It will have brightened |
| They have brightened | They had brightened | They will have brightened |
| Present Perfect Continuous | Past Perfect Continuous | Future Perfect Continuous |
|---|---|---|
| I have been brightening | I had been brightening | I shall/will have been brightening |
| We have been brightening | We had been brightening | We shall/will have been brightening |
| You have been brightening | You had been brightening | You will have been brightening |
| He has been brightening | He had been brightening | He will have been brightening |
| She has been brightening | She had been brightening | She will have been brightening |
| It has been brightening | It had been brightening | It will have been brightening |
| They have been brightening | They had been brightening | They will have been brightening |