2 added 8 characters in body
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This example helped me to understand that:

I am watering the plant (watering verb.)

The plant needs watering (needs verb. and watering noum) > gerund

I am watering the plant. [watering = verb]

The plant needs watering. [needs = verb and watering = noun/gerund]

This example helped me to understand that:

I am watering the plant (watering verb.)

The plant needs watering (needs verb. and watering noum) > gerund

This example helped me to understand that:

I am watering the plant. [watering = verb]

The plant needs watering. [needs = verb and watering = noun/gerund]

1
source | link

This example helped me to understand that:

I am watering the plant (watering verb.)

The plant needs watering (needs verb. and watering noum) > gerund