Scientific Writing for Computer Science Students - FTP Directory ...

36 CHAPTER 4. GRAMMAR WITH STYLE NOTESTask: What is the difference between the following concepts? Give exampleswhen they are used!evaluate – assesscompute – calculatederive – inferapproximate – estimatediscover – find4.1.6 Often needed irregular verbsThe following list contains irregular verbs which are sometimes needed incomputer science expressions, excluding the most common ones (which all ofyou know!):choose – chose – chosenfind – found – foundhide – hid – hiddenhold – held – heldlead – led – ledlose – lost – lostrise – rose – risenseek – sought – soughtshow – showed – shownspin – spun – spunsplit – split – splitspread – spread – spreadstick – stuck – stuckIn addition, the last consonant can be doubled before -ed, if• if the spell is short and stressed: planned, dropped,• the consonant is ’l’: travelled, modelled, biassedNotice: American English is not so strict, and ispell can complain aboutcorrect spelling!