French language Q&A Forum

I was wondering where we are supposed to place these constructions within sentences and clauses. Some translations show after the entire clause or sentence, some show after the verb.

- Nous les avons tous les deux vu(e)s

- Nous les avons vu(e)s tous les deux

- Lui et son frère sont venus tous les deux 

A general lesson about saying 'both' to describe people and objects should be made.

I can follow that most of the text is in the (futur d'anticipation). 

However, I am wondering why the text switched to using  the infinitive (entendre), in the last sentence? and why not use the Gerondif -en entendant. like at the beginning of the fourth sentence. 

In the test, it says -Il termine dans 2 minutes. shouldnt it be ..en 2 minutes. i have learnt that when some action finishes within a particular time we use en. 

Is this also the correct way of framing inversion questions with Object Pronouns??? -

1. L’Aimes-tu? / L'aimez-vous? [Do you like him/her?]

2. Lui parles-tu souvent? / Lui parlez-vous souvent? [Do you speak to him/her often?]

3. Les avez-vous vus? /  Les avez-vous vues? [Have you seen them?]

Is the above way more formal, than the intonation method used in this lesson?