Do you study Vietnamese the first time? ☊ 
Bạn học tiếng Việt lần đầu tiên hả? ☊ like: the first time → →
for the first time in a week ☊ lần đầu tiên sau một tuần ☊ (for) the first time in history ☊ lần đầu tiên trong lịch sử ☊ for the first time in recorded history ☊ lần đầu tiên trong lịch sử mà con người ghi nhận được ☊ (for) the first time in one’s life ☊ lần đầu tiên trong đời ☊ You're bound to be nervous the first time (= it's easy to understand). ☊ bound ☊
For the first time in years, she felt in command of her life. ☊ command ☊
This was the first time he had confronted an armed robber. ☊ confront ☊
I've been crazy about him since the first time I saw him. ☊ crazy ☊
It was the first time they had ever met. ☊ first ☊
The first I heard about the wedding (= the first time I became aware of it) was when I saw it in the local paper. ☊ first ☊
Is this the first time that you've flown? ☊ fly ☊
forget (sb) doing sth: I'll never forget hearing this piece of music for the first time. ☊ forget ☊
For the first time he was able to speak freely without the fear of reprisals against his family. ☊ freely ☊
It was the first time that she had lived independently. ☊ independently ☊
This is not the first time he has been investigated by the police for fraud. ☊ investigate ☊
It was love at first sight (= they were attracted to each other the first time they met). ☊ love ☊
nice (to do sth): Nice to meet you! (= a friendly greeting when you meet sb for the first time) ☊ nice ☊
a first offence (= the first time that sb has been found guilty of a crime) ☊ offence ☊
It was love at first sight (= we fell in love the first time we saw each other). ☊ at first sight ☊
It was the first time I'd had visitors since I'd moved to London. ☊ since ☊
This is the first time I've sat behind the wheel since the accident. ☊ wheel ☊