Present
I    quit
you  quit
he   quits
we   quit
you  quit
they quit

Perfect
I    have quitted; quit
you  have quitted; quit
he   has quitted; quit
we   have quitted; quit
you  have quitted; quit
they have quitted; quit

Past
I    quitted; quit
you  quitted; quit
he   quitted; quit
we   quitted; quit
you  quitted; quit
they quitted; quit

Pluperfect
I    had quitted; quit
you  had quitted; quit
he   had quitted; quit
we   had quitted; quit
you  had quitted; quit
they had quitted; quit

Future
I    will quit
you  will quit
he   will quit
we   will quit
you  will quit
they will quit

Future perfect
I    will have quitted; quit
you  will have quitted; quit
he   will have quitted; quit
we   will have quitted; quit
you  will have quitted; quit
they will have quitted; quit

Present
I    quit
you  quit
he   quit
we   quit
you  quit
they quit

Present
I    have quitted; quit
you  have quitted; quit
he   have quitted; quit
we   have quitted; quit
you  have quitted; quit
they have quitted; quit

Imperfect
I    quitted; quit
you  quitted; quit
he   quitted; quit
we   quitted; quit
you  quitted; quit
they quitted; quit

Pluperfect
I    had quitted; quit
you  had quitted; quit
he   had quitted; quit
we   had quitted; quit
you  had quitted; quit
they had quitted; quit

Present
I    would quit
you  would quit
he   would quit
we   would quit
you  would quit
they would quit

Perfect
I    would have quitted; quit
you  would have quitted; quit
he   would have quitted; quit
we   would have quitted; quit
you  would have quitted; quit
they would have quitted; quit

Present
I    am quitting
you  are quitting
he   is quitting
we   are quitting
you  are quitting
they are quitting

Perfect
I    have been quitting
you  have been quitting
he   has been quitting
we   have been quitting
you  have been quitting
they have been quitting

Past
I    was quitting
you  were quitting
he   was quitting
we   were quitting
you  were quitting
they were quitting

Pluperfect
I    had been quitting
you  had been quitting
he   had been quitting
we   had been quitting
you  had been quitting
they had been quitting

Future
I    will be quitting
you  will be quitting
he   will be quitting
we   will be quitting
you  will be quitting
they will be quitting

Future perfect
I    will have been quitting
you  will have been quitting
he   will have been quitting
we   will have been quitting
you  will have been quitting
they will have been quitting

Present
I    would be quitting
you  would be quitting
he   would be quitting
we   would be quitting
you  would be quitting
they would be quitting

Perfect
I    would have been quitting
you  would have been quitting
he   would have been quitting
we   would have been quitting
you  would have been quitting
they would have been quitting