Phrase
all along
adverb
一直；始终
For the entire time; always.
- 1.
For the entire time; always.
自始至终；一直。
自始至终；一直。
In use
She knew the truth all along but chose not to reveal it.
I suspected all along that he was lying, and now I have proof.
They had been planning the surprise party all along without telling me.
subject + verb + all along
I knew that all along.
我自始至终都知道。
subject + have/has been + ... + all along
He has been lying to us all along.
他一直都在对我们撒谎。
all along, subject + verb
All along, she had planned to leave.
从一开始，她就计划离开。
Common mistakes
She all along arrives on time.She always arrives on time.
“all along” 强调从过去某一时间到现在一直如此，不用于描述一般习惯；表示习惯性动作应用 “always”。
I will all along support you.I will always support you.
“all along” 用于描述过去延续至现在的情况，不能与将来时连用；表示将来始终如此应用 “always”。
Connections
Learner notes
Grammar Note
常与完成时连用，表示从一开始到现在一直如此。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.