The combination of perfective aspect and present tense is frequently considered as an example of semantically incompatible grams. If verbal forms including markers of both perfective aspect and present tense do exist in a language, they tend not to express present resp. perfective in the strict sense. Thus, in Russian such forms usually convey the future, as in napishu ‘I will write’. The article discusses a specific type of contexts where these forms develop a less trivial meaning of what can be called “prospective present”. Obligatory components of these contexts are first person of the verb and negation. We focus on three instances of this kind : ne skazhu (lit. ‘I won’t tell’), ne dam (lit. ‘I won’t give’) and ne pushchu (lit. ‘I won’t let’)’. With the data of Russian National Corpus (RNC) and notably of the parallel corpora within RNC, we demonstrate that in certain uses, these constructions correspond to speech acts of refusal or prohibition and can be viewed, accordingly, as expressing a kind of performative meaning. As performatives, these verbs refer to a present situation: the speaker’s refusal or prohibition comes into operation at the moment of utterance, and not at some point in the future. The present-tense reference is corroborated by the translational counterparts of ne skazhu / ne dam / ne pushchu from parallel corpora, as other languages regularly use present forms in these contexts. Thus, performative-like constructions provide new data on potential non-future meanings of perfective present forms.