[Grammar] Join / enroll / sign up / sign on

[irland5]

Hello everybody

I have a question regarding the usage of Join / Enroll/ sign up and sign on . I know that they can mean the same depending on thecontext. I am going to ask you if the sentences below are ok but please feelfree to add more examples of their usage.

I am going to join a gym / I am going to sign upat a gym / I am going to enroll a gym / I am going to sign on a gym

I am going to enroll at college / I am going toenroll in college / I am going to sign up college / I am going to sign up atcollege / I am going to sign on at college/ I am going to sign on college

I am going to join an excel course/ I am going toenroll an excel course/ I am going to sign up an excel course / I am going tosign on an excel course.

Many thanks,

Irland5

 

[emsr2d2]

There are a lot of missing spaces in your post. Please use the "Edit Post" function to add spaces between words where necessary.

 

[Tdol]

I am going to join a gym :tick:
I am going to sign up at a gym :tick:

The others need a preposition:
I am going to enroll at/with a gym
I am going to sign on at/with a gym