PRESENT PERFECT and PAST SIMPLE (p.115) TENSE PRESENT PERFECT PAST SIMPLE FORM SUBJECT + HAVE/HAS + PAST PARTICIPLE BASE FORM + ED IRREGULAR VERBS (check list) USE actions or events that took place in a not-finished time or period ( up to now, today, this year.. ) Finished actions at the time of speaking I read that book last year. ADVERBS USED: JUST, ALREADY, YET, STILL… TIME EXPRESSIONS Last …, yesterday, in …, …ago