Past passive participle

Past passive participles (страдательное причастие прошедшего времени) are formed from perfective verb and design a noun with a reference to an action performed on it in the past.

~ Formula for verbs with -ать, -ять, -еть: past form (of 3rd person singular: он / he) of a verb without -л + -нн + adjective ending.

~ Formula for verbs with -ить, -сти, -зти: verb in future 1st person singular (я = I) without its ending (-ю / -у) + -енн + adjective ending.

~ Formula for verbs with -чь: verb in future 2nd person singular (ты = you) without its ending (-ёшь) + -ённ + adjective ending.

~ Formula for verbs in –уть, -ыть, -оть, -ереть and from monosyllabic verbs (and their pairs but with prefixis) in –ить and –еть: past form (of 3rd person singular: он / he) of a verb without -л + -т + adjective ending