Can you say: So, you've agreed on helping me. VS So you've agreed to helping me.

[B45]

Can you say:

So, you've agreed on helping me.

VS

So you've agreed to helping me.

Are both okay?

 

[Rover_KE]

No. Just say 'So you've agreed to help me'.

 

[B45]

No. Just say 'So you've agreed to help me'.

So you've agreed on - is wrong? Because I've heard it used before.

 

[José Manuel Rosón Bravo]

https://www.usingenglish.com/forum/threads/212296-agree-with-to

 

[Rover_KE]

A buyer and a seller can agree on a price.

Two warring nations can agree on the terms of a ceasefire.