• Complete Sentence: The movie was so exciting that everyone stayed until the very end.
- Bangla Meaning: সিনেমাটি এতই উত্তেজনাপূর্ণ ছিল যে সবাই শেষ অবধি অপেক্ষা করল।
- এখানে, exciting হচ্ছে - adjective.

• So... that
- It expresses a cause and effect.

• Structure:
So + adjective/adverb + that

Examples:
- The box was so heavy that we needed help to carry it.
- The weather was so cold that the lake froze overnight.
- He was so tired that he fell asleep during the meeting.
- The cake was so delicious that I had to ask for the recipe.

- যেহেতু এটা cause & effect প্রকাশ করে, তাই সম্পূর্ণ বাক্যে একই tense হবে।
- প্রশ্নোক্ত বাক্যের প্রথম অংশে past tense থাকায় পরের অংশেও past tense হবে।

• Bad at something:
English meaning: These words describe a person who lacks skill in doing something.

• The word with the broadest use is bad. You can be bad at something or bad at doing something. 
Example: We’re really bad at predicting future costs.

• দক্ষতা/অদক্ষতা বুঝাতে শব্দের সাথে at ব্যবহৃত হয়। যেমন- good at, bad at etc.

যেমনঃ
He is bad/good at cricket. [a bad/good player]
Running is bad/good for you. [unhealthy/healthy]
I am not bad at tennis.
He is good at chess.

Complete sentence: I am not bad at tennis.

Source: Cambridge Dictionary.

Infinitive after Certain Verbs

• কিছু verb এর পরে যদি আরেকটি verb ব্যবহার করতে হয়, তাহলে infinitive (to + verb) ব্যবহার করতে হবে।

• এই verb গুলোর সাথে verb + ing ব্যবহার করা যায় না।

Common Verbs:

• agree, want, arrange, decide, demand, require, forget, propose, manage, refuse, ask, ইত্যাদি

Example:

• Correct: The teacher asked the students to sit down.

•   Incorrect: The teacher asked the students sitting down.

Source: Advanced Learner's Communicative English Grammar & Composition By Chowdhury & Hossain