Is this sentence all right? (No sooner had the train...)

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi,
Please have a look at this sentence:

No sooner had the train pulled away than I realised I had left my suitcase on the platform.

=> There are two past participle in the sentence. Is it all right?

Many thanks
Nessie.

2

.
Yes, the sentence is fine.
Basically, both ‘pulled away’ and ‘left’ happened further in the past than ‘realized’.
.