Expressions of frequency 1. immediately before the verbs always; never; often eg: She always gets up at 630 never gets up at 630 often gets up at 630 But, He is often late. always late. never late. 2. immediately before the verb of at the beginning/end of the sentence (for special emphoses) sometimes; usually; generally; normally; occasionally 3. adverb phrases like: as a rule; now and again; from time to time must come at the beginning of the end of the sentence eg: I have lunch at home, as a rule Expressions of precise frequency (how often? how many? How much?) 1. (about) (once a (day twice week three times) month year) 2. (once every (two hours. twice three months. three times) four) years. 3. Watch out: once an hour = every hour. Twice an hour ≠ every two hours. Three times an hour ≠ every three hours.