Why we don't use "to teach" instead "to teaching"
Why we don't use "to teach" instead "to teaching"

I am looking forward to teaching you over the nex six weeks.

Question

Why we don't use "to teach" instead "to teaching"
Why we don't use "to teach" instead "to teaching"

I am looking forward to teaching you over the nex six weeks.

Answer

Hi Tahar,

The phrase is "to look forward to [something]". This means that if we use an action as "something", it must have a gerund form.