Make 5 questions (general, who-questions, 2 special, tag - question) 1. he was going to catch the 6 o'clock 2. he caught the 6 o clock train

Общий вопрос.

1. Was he going to catch the 6 o'clock train?

2. Did he catch the 6 o'clock train?

Who-question задают к подлежащему.

1. Who was going to catch the 6 o'clock train?

2. Who caught the 6 o'clock train?

Специальные вопросы.

1. What was he going to catch at 6 o'clock? What train was he going to catch?

2. What did he catch at 6 o'clock? What train did he catch?

В tag-question идет обычный порядок слов и "хвостик".

1. He was going to catch the 6 o'clock train, wasn't he?

2. He caught the 6 o'clock train, didn't he?