Present
I    tinker
you  tinker
he   tinkers
we   tinker
you  tinker
they tinker

Perfect
I    have tinkered
you  have tinkered
he   has tinkered
we   have tinkered
you  have tinkered
they have tinkered

Past
I    tinkered
you  tinkered
he   tinkered
we   tinkered
you  tinkered
they tinkered

Pluperfect
I    had tinkered
you  had tinkered
he   had tinkered
we   had tinkered
you  had tinkered
they had tinkered

Future
I    will tinker
you  will tinker
he   will tinker
we   will tinker
you  will tinker
they will tinker

Future perfect
I    will have tinkered
you  will have tinkered
he   will have tinkered
we   will have tinkered
you  will have tinkered
they will have tinkered

Present
I    tinker
you  tinker
he   tinker
we   tinker
you  tinker
they tinker

Present
I    have tinkered
you  have tinkered
he   have tinkered
we   have tinkered
you  have tinkered
they have tinkered

Imperfect
I    tinkered
you  tinkered
he   tinkered
we   tinkered
you  tinkered
they tinkered

Pluperfect
I    had tinkered
you  had tinkered
he   had tinkered
we   had tinkered
you  had tinkered
they had tinkered

Present
I    would tinker
you  would tinker
he   would tinker
we   would tinker
you  would tinker
they would tinker

Perfect
I    would have tinkered
you  would have tinkered
he   would have tinkered
we   would have tinkered
you  would have tinkered
they would have tinkered

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

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

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

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

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

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

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

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