Present Simple(adj) Affirmative(darak gap) Subject+Verb(s,es)+O+P+T

Subject+could have+V3/ed+O+P+T
e.g I could have taken the test last year but I changed my mind
e.g I could have roasted the potatoes but I decided that boiling them was healthier
b)Biz couldn’t have done ni o’tgan zamonda qilinmagan lekin qilsak ham qila olmasdik ma’nosida ishlatamiz.
Subect+could not have+V3/ed+O+P+T
e.g The trip was cancelled last week.Paul couldn’t have gone anyway because he was ill.
e.g Anna went to France last week,she didn’t stay with her sister,she couldn’t stayed with her because her sister was away.
Attention:Biz shuningdek could ni hozirgi zamonda noreal bo’lgan ish harakatlar uchun ham ishlatamiz.
e.g I am so tired,I could sleep for a week
e.g This is a wonderful place,I could stay here for ever
Attention:Biz could have done ni o’tgan zamondagi noreal ish-harakatlarni aytishda ishlatamiz.
e.g I was tired,I could have slept for a week
Permission (ruxsat)
1.Asking for permission-ruhsat so’rash
can,could,may,would,will
2.Giving permission-ruhsat,ijozat berish
may,can
3.Refusing permission-ruhsat bermaslik
may not,can’t
1.Asking for permission
May/could/can/would/will+Subject+V+O+P+T?
e.g Could you pass the salt please?
e.g Can I borrow your pen?
e.g Will you give me her address?
e.g Would someone help me move the piano?
May is more polite than could,would,will
and could,would,will are more polite than can.
Attention: May is only used with I or we when we are asking for permission.
e.g I am busy now,may I call you later?
Would you mind if I+V2/ed+O+P+T?
e.g Would you mind if I closed the window?(Derazani yopsam qarshimasmisiz?)
e.g Would you mind if I used the phone?(Telefondan foydalanishimga qarshimasmisiz?)