"There is" can be easily translated by "Il y a" in French.
The basic structure is :



Example :
"There is a cat on the table."
"Il y a un chat sur la table."

"There is a book in front of me."
"Il y a un livre devant moi."

All you have to do is to learn how to say the little word that locates the object.
Just look at the vocabulary below.


On : Sur
Under : Sous
In : Dans
Behind : Derrière
In front of : Devant
Inside : À l'intérieur de
Outside : À l'extérieur de
On the left : À gauche
On the right : À droite


Edit

Exercise :

Then you can translate those sentences, and send me your translation as usual that I can correct them.


- There is a bag on the chair.
- There is a man in the house.


The vocabulary for those sentences is below too, so you don't have to look for it in an online dictionnary.


Vocabulary
A chair: Une chaise
Il y a: There is
Moi: Me
Table: Table
The house: La maison
Un chat: A cat
Un homme: A man
Un livre: A book
Un sac: A bag
Une femme: A woman