چطوری در جملات انگلیسی از که استفاده میشود؟؟

Question

مثلا در جمله من درس میخوانم که مادرم شاد بشود 

و یا جمله من امیدوارم که همه جلسه ها را بیایم

Answer 1

Sometimes "to" can serve the function. I study to keep my mother happy or i hope to attend all the sessions.

Answer 2

I study so that my mother feels happy.

I hope that I could/would (be able to) attend all the sessions.

Answer 3

to

in order to

in order that (more formal than so that)

so that

so

that

which

who

whose

whom

sometimes None (no equivalent is there for the word "که")

It depends on the sentence and the verbs.

I hope (that) I will come to all the sessions, or I hope to come to all the sessions.

I study so that my mother will become happy, or I study in order that my mother will become happy.