Can you help me!?
Hello! What would be the question tag for 'let's phone Paul,______?

Also, the question tag for 'that's a bad idea_____?' is isn't it?

Question

Can you help me!?
Hello! What would be the question tag for 'let's phone Paul,______?

Also, the question tag for 'that's a bad idea_____?' is isn't it?

Answer

Hi Camile!

The answer here would be:

'Let's phone Paul, shall we?'

'That's a bad idea isn't it?'

In general for question tags, we repeat the auxiliary verb from the sentence. For example, if I say:

"You're from Ireland."

then my auxiliary verb is "be" ("You ARE from Ireland")

So when I make the question tag I say:

"You're from Ireland, aren't you?"

If my sentence doesn't have an auxiliary, then we usually use "do".

For example, if my sentence is:

"You like Metallica"

there's no auxiliary verb in this sentence, so when we make the tag it will be:

"You like Metallica, don't you?"

Try making tags for these sentences to practice:

You went to Germany, ________?
You've been to Germany, _________?

You live in France, ______?
You are from France, _______?

You enjoy Judo, ________?
You do Judo, ______?

Answer

Hi!

For the first you can try:  "shall we?"
And the second: "isn't it?"