nie ma co czekac na nauczycieli, trzeba pokazac, co mam, aby inni zainteresowani byli rowniez pewni moich argumentow
Personal pronouns after forms of be.
'That must be him on the phone.' 'No, it must be he.' Traditional grammar requires the nominative form of the pronoun following the verb be: 'It is I (not me)'; 'That must be they (not them)', and so forth. Nearly everyone finds this rule difficult to follow. Even if everyone could follow it, in informal contexts the nominative pronoun often sounds pedantic and even ridiculous, especially when the verb is contracted. Who would ever say 'It’s we'? But constructions like 'It is me' have been condemned in the classroom and in writing handbooks for so long that there seems little likelihood that they will ever be entirely acceptable in formal writing.
The traditional rule creates additional problems when the pronoun following be also functions as the object of a verb or preposition in a relative clause, as in 'It is not them/they that we have in mind when we talk about “crime in the streets” nowadays', where the plural pronoun serves as both the predicate of is and the object of have. In this example, 57 percent of the Usage Panel prefers the nominative form they, 33 percent prefer the objective them, and 10 percent accept both versions. Perhaps the best strategy is to revise these sentences to avoid the problem. You can say instead 'They are not the ones we have in mind, We have someone else in mind, and so on.'