8.2 GRAMMAR PRESENT TENSES Structure Use PRESENT SIMPLE + Subj + to inf (if subj = 3rd pers sing + -s) rd Subj + Aux (DO, if subj = 3 pers sing + -s) + not + to inf ? Aux (DO, if subj = 3rd pers sing + -s) + Subj + to inf 1. Permanent situations PRESENT CONTINUOUS + Subj + Aux (BE ) present simple + to inf + -ing Subj + Aux (BE ) present simple + not + to inf + -ing ? Aux (BE ) present simple + Subj + to inf + -ing 2. Frequency and routines 2. Current events 3. Facts 3. Moment of speaking 4. Timetables 4. Future definite arrangements 5. Description of places 5. Description of pictures/graphs > Paediatricians deal with children. > The doctor usually arrives at 8.15 on Fridays. > The respiratory system provides oxygen. > The manager s flight takes off at 8.05 from Luton. > The nursing home occupies over 5,000 sqm. Indicators Frequency adverbs 1. Temporary situations > I m afraid the dentist isn t working today. > The NHS is currently promoting a vaccination campaign. > Ms Frendiss is attending a meeting at the moment. > I m seeing the chiropractor on Thursday morning. > Prices of vegetables are growing. Frequency expressions > every day/month/ , twice a day/month/ Expressions that indicate habits > on Sunday/ , at Halloween/ , in winter/ Both state and action verbs can be used in the present simple. State verbs: volition, cognition, perception, feeling. Expressions that indicate temporariness > at the moment, at present, now, today, while, this + time expression, > always, often, usually, sometimes, rarely, seldom, never these + time expression Only action verbs can be used in the present continuous. State verbs can t. Habitual actions can use the present continuous to mean annoyance. > Dr Smith is always criticising his employees. Structure Use PRESENT PERFECT SIMPLE + Subj + Aux (HAVE) present simple + Past Participle Subj + Aux (HAVE ) present simple + not + Past Participle ? Aux (HAVE ) present simple + Subj + Past Participle 1. Present impact of past action/recent event PRESENT PERFECT CONTINUOUS + Subj + Aux (HAVE ) present simple + Aux (BE ) past participle + to inf + -ing Subj + Aux (HAVE ) present simple + not + Aux (BE ) past participle + to inf + -ing ? Aux (HAVE ) present simple + Subj + Aux (BE ) past articiple + to inf + -ing 1. Unfinished continuous or repetitive actions 2. Unfinished action started in the past 2. Recently finished actions with evidence 3. Unfinished periods of time 3. Unfinished activities in a period of time > Our sales are going up because we have reduced prices. > I haven t met the nurse today. > Dr Holli has worked for the hospital for 20 years. (and still is) > We have been producing microscopes for 12 years. > The surgeon is exhausted, he has been operating for the past three hours. > The nurse has been answering phone calls all day. (both day and phone calls haven t finished yet) 4. Present result of completed action in a period of time > We ve written 20 emails since this morning. 5. Finished past events with no time reference > I ve read many important articles about bullying. Indicators 370 extra just, ever, never, already, yet, for + total duration, since + beginning of duration, still, so far, recently, this/these + time expression, today, how long for + total duration, since + beginning of duration, recently, this/ these + time expression, today, how long