Sequence of tenses

Not studying has caused him many problems – O’qimaganlik unga ko’p tashvish keltirdi.
NOTE 5. Infinitiv va gerundiy gapda and boglovchisi bilan ishlatilganda ko’plikdagi kesim bilan moslashadi.
Saying and doing are two things-Aytish va bajarish boshqa-boshqa narsalar
Reading story books and playing football are my hobbies-Hikoya kitoblar o’qish va futbol o’ynash mening hobbim.
● Lekin Gerundiy gapda otlar oldidan aniqlovchi vazifasida kelganda, undan keyin kelayotgan otlarning birlik yoki ko’plikda ekanligiga qarab kesim (fe’l) ham birlik yoki ko’plikda bo’ladi.
Living expenses are high in this part of the country – Mamlakatning bu qismida yashash harajatlari yuqori ekan.
8. Ba’zi bir olmoshlar va sonli birikmalardan so’ng sanaladigan birlikdagi ot yoki sanalmaydigan otlar kelsa, ulardan so’ng fe’llarning birlik shakli qo’llanadi:
Model:__S_ome_of__A_lot_of_+_singular_noun/noncount_noun_+_verb_(in_singular)__Two-thirds_of_Some_of_the_book_is_good'>Model:
S ome of
A lot of + singular noun/noncount noun + verb (in singular)
Two-thirds of
Some of the book is good – Ktobning ba’zi qismlari yaxshi ekan.
A lot of the equipment is new – Ko’plab jihozlar yangi.
Two-thirds of the money is mine – Pulning uchdan ikki qismi meniki.
Xuddi shu sonli birikmalar va olmoshlardan so’ng sanaladigan ko’plikdagi otlar kelsa, ulardan so’ng fe’llar ko’plik shaklda qo’llanadi:
Model:
S ome of
A lot of + plural count noun (in plural)+ verb (in plural)
Two-thirds of
Some of the books are good – B’zi bir kitoblar yaxshi.
A lot of my friends are here – Ko’plab do’stlarim shu yerda.
Two-thirds of the dollars are mine – Dollarning uchdan ikki qismi meniki.
10. One of/every one of/each of/each one of/none of olmoshlaridan keyin sanaladigan ko’plikdagi otlar kelsa ham fe’llar birlikda ishlatiladi.