Present
| I | decolourise |
| You | decolourise |
| She | decolourises |
| We | decolourise |
| They | decolourise |
Past
| I | decolourised |
| You | decolourised |
| She | decolourised |
| We | decolourised |
| They | decolourised |
Perfect
| I | have | decolourised |
| You | have | decolourised |
| She | has | decolourised |
| We | have | decolourised |
| They | have | decolourised |
Future
| I | will | decolourise |
| You | will | decolourise |
| She | will | decolourise |
| We | will | decolourise |
| They | will | decolourise |
Past Perfect
| I | had | decolourised |
| You | had | decolourised |
| She | had | decolourised |
| We | had | decolourised |
| They | had | decolourised |
Future Perfect
| I | will | have | decolourised |
| You | will | have | decolourised |
| She | will | have | decolourised |
| We | will | have | decolourised |
| They | will | have | decolourised |
Present - Conditional
| I | would | decolourise |
| You | would | decolourise |
| She | would | decolourise |
| We | would | decolourise |
| They | would | decolourise |
Perfect - Conditional
| I | would | have | decolourised |
| You | would | have | decolourised |
| She | would | have | decolourised |
| We | would | have | decolourised |
| They | would | have | decolourised |