What Do You Say When …?

What do you say when …

1. you know the word, but you just can’t remember it?
2. you need help with the  pronunciation of a word?
3. you are looking for a specific word?

1. It’s on the tip of my tongue. I just can’t think of it at the moment.
2. How do you say that word again?
3. What’s the word again for … ?

We can keep our sentences fairly simple.