Can Ability/possibility Inability/impossibility Asking for permission Request  - They can control their own budget. - We can't fix it. - Can I smoke here? - Can you help me? Could Asking for permission Request Suggestion Future possibilities Ability  - Could I borrow your dictionary? - Could you say it again more slowly? - We could try to fix it ourselves. - I think we could have another gulf war.  - He gave up his old job so he could work for us. May

 100years, 10years, 1year, months, week - in Days, Date - on Am/Pm (time), 'o' clock - at Morning, evening, afternoon - in Night, mid night, mid day - at Weekend - on/at Minutes - in/at