Seid is the second person plural of the verb sein - to be
ihr seid = you are
seid is the inflected form of the verb sein (to be).ihr seid - you are (2nd person plural, informal)
Seit is a preposition,which translates as since and therefore has no past participle.If you mean seid (2nd person plural of the verb sein - to be) then the past participle is seid gewesen
But isn't a German word.
Plick is not a German word.
Rouse is not a German word
greave is not a German word.
"houpacker" means nothing in German; it is not a German word.
That word is not German, sorry.
Oxded is not a German word
Do you mean elan? Then the word exists in German
to be- sein wir (we) and sie (they) conjugate to 'sind' ihr (you pl., informal) conjugates to 'seid' Du (you sing, informal) conjugates to 'bist' Sie (you sing. and pl., formal) conjugates to 'sind'
Sunna is not a German word. The closest German word is Sonne which translates as sun.