Question

I went to attend ___ the seminar in Delhi.

Answer 1

Answer:

I went to attend the seminar in Delhi.

- This is a past tense sentence.The verb here is went.The sentence says that you went somewhere in the past to attend a specific  webinar in Delhi.

If you want to convert this sentence to:

Future- I will have to attend the seminar in Delhi

Present- I attend a seminar in Delhi.

This is an active voice sentence

To convert it to PASSIVE VOICE-

You will have to focus on the object in passive voice so here it is seminar (object in active voice)

So it will be-

The seminar was attended by me (by me is optional).