do I brighten? do you brighten? does she brighten? do we brighten? do you brighten? do they brighten?
Present continuous
am I brightening? are you brightening? is she brightening? are we brightening? are you brightening? are they brightening?
Preterite
did I brighten? did you brighten? did she brighten? did we brighten? did you brighten? did they brighten?
Preterite continuous
was I brightening? were you brightening? was she brightening? were we brightening? were you brightening? were they brightening?
Present perfect
have I brightened? have you brightened? has she brightened? have we brightened? have you brightened? have they brightened?
Present perfect continuous
have I been brightening? have you been brightening? has she been brightening? have we been brightening? have you been brightening? have they been brightening?
Pluperfect
had I brightened? had you brightened? had she brightened? had we brightened? had you brightened? had they brightened?
Pluperfect continuous
had I been brightening? had you been brightening? had she been brightening? had we been brightening? had you been brightening? had they been brightening?
Future
will I brighten? will you brighten? will she brighten? will we brighten? will you brighten? will they brighten?
Future continuous
will I be brightening? will you be brightening? will she be brightening? will we be brightening? will you be brightening? will they be brightening?
Future perfect
will I have brightened? will you have brightened? will she have brightened? will we have brightened? will you have brightened? will they have brightened?
Future perfect continuous
will I have been brightening? will you have been brightening? will she have been brightening? will we have been brightening? will you have been brightening? will they have been brightening?
Conditional
Present
would I brighten? would you brighten? would she brighten? would we brighten? would you brighten? would they brighten?
Present continuous
would I be brightening? would you be brightening? would she be brightening? would we be brightening? would you be brightening? would they be brightening?
Past
would I have brightened? would you have brightened? would she have brightened? would we have brightened? would you have brightened? would they have brightened?
Past continuous
would I have been brightening? would you have been brightening? would she have been brightening? would we have been brightening? would you have been brightening? would they have been brightening?