National audienceUnder the referential-anaphoric interpretation, null complements of transitive verbs, adjectives and prepositions in English are highly constrained. We examine this phenomenon in the context of certain other interpretative values than simply the anaphoric one, comparing null forms with overt pronouns. It is shown that it is semantic factors (the host predicate's Aktionsart type, the nature of its selection restrictions and the event structure of the entire predication) as well as pragmatic ones (the contextual reference domain of the utterance, the possible existence for a given predicate of a conventionally recognised denotation type) which may both sanction the null complement and assign it an interpretation.Dans leur int...