How to identify a gerund and a participle

[moazzam]

Hi, friends.

What's the simplest way to identify a gerund and participle in a sentence?
I'm so confused, please tell me a simple trick that can help me identify the gerund and participle.

Many many thanks in advance.

[Josef Essberger]

If it looks like a noun it's a gerund. Gerunds behave like nouns. For example, they can be subjects and objects.

Which ONE of these is a participle?

I am fishing.
I hate fishing.
Fishing is fun.