1. Introduction 2. The Linear Order of a PV in the VPs 2.1 Information structure in PVs 2.2 Intonation pattern 3. The Underlying Word Order of PVs 3.1 Discontinuous order 3.2 Continuous order 4. The Internal Syntactic Structure of PVs 4.1 Traditional analysis 4.2 Small clause analysis 4.3 Extended VP-shell analysis 4.4 Functional category analysis 5. Discontinuous PV Constructions as Residual OS 5.1 Verb-particle combinations in the history of English 5.2 PV constructions in Present-day English 6. Concluding remarks References