I think at 2 years of age, you still need to model to her sentences. ie. if she is saying "up, up, up" then you could say to her..."DD, you need to say Mummy can you pease pick me up"

She will start copying your sentence the more you reinforce them
I do a lot of that.

So with the tv i said to her "say yes to mummy if you want to watch tv" i usually get screamed no at or she keeps whining lol