Present
I    show
you  show
he   shows
we   show
you  show
they show

Perfect
I    have shown (E); showed (U)
you  have shown (E); showed (U)
he   has shown (E); showed (U)
we   have shown (E); showed (U)
you  have shown (E); showed (U)
they have shown (E); showed (U)

Past
I    showed
you  showed
he   showed
we   showed
you  showed
they showed

Pluperfect
I    had shown (E); showed (U)
you  had shown (E); showed (U)
he   had shown (E); showed (U)
we   had shown (E); showed (U)
you  had shown (E); showed (U)
they had shown (E); showed (U)

Future
I    will show
you  will show
he   will show
we   will show
you  will show
they will show

Future perfect
I    will have shown (E); showed (U)
you  will have shown (E); showed (U)
he   will have shown (E); showed (U)
we   will have shown (E); showed (U)
you  will have shown (E); showed (U)
they will have shown (E); showed (U)

Present
I    show
you  show
he   show
we   show
you  show
they show

Present
I    have shown (E); showed (U)
you  have shown (E); showed (U)
he   have shown (E); showed (U)
we   have shown (E); showed (U)
you  have shown (E); showed (U)
they have shown (E); showed (U)

Imperfect
I    showed
you  showed
he   showed
we   showed
you  showed
they showed

Pluperfect
I    had shown (E); showed (U)
you  had shown (E); showed (U)
he   had shown (E); showed (U)
we   had shown (E); showed (U)
you  had shown (E); showed (U)
they had shown (E); showed (U)

Present
I    would show
you  would show
he   would show
we   would show
you  would show
they would show

Perfect
I    would have shown (E); showed (U)
you  would have shown (E); showed (U)
he   would have shown (E); showed (U)
we   would have shown (E); showed (U)
you  would have shown (E); showed (U)
they would have shown (E); showed (U)

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

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

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

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

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

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

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

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