Breakdown of Todavía no he puesto lejía en el cubo.
no
no / not
en
in / on / by (means of transport) / about (after pensar)
poner
to put / to set (the table) / to make (an excuse) / to give, to impose (a fine, a penalty)
haber
to have (auxiliary)
Questions & Answers about Todavía no he puesto lejía en el cubo.
Why is todavía no at the beginning of the sentence when 'yet' goes at the end in English?
Is puesto the irregular past participle of poner?
Yes! Poner (to put) has a highly irregular past participle. Instead of ending in -ido, it becomes puesto. You will use this form in all perfect tenses, like the present perfect (he puesto) used here.
Why use the present perfect (he puesto) here instead of the simple past (puse)?
In Spain, the present perfect is heavily used for actions that happened (or didn't happen) in a time frame that isn't finished yet, or when the result is directly connected to the present. Since you haven't put the bleach in yet, it implies you still might do it, making the present perfect the most natural choice.
Does cubo mean 'cube' or 'bucket'?
Both! While it translates to the geometric shape 'cube', in everyday Spanish from Spain, un cubo is the standard word for a bucket, such as one you would use for cleaning with bleach (lejía).