Preliminary remark : There is no verb "to be" in Arabic, but the verb of existence ka:na / ya-ku:n is used when a temporal reference is required; laisa is used in the negation.

Existence...................kaun
Existing.....................ka:?in
Life.........................   h.aya:(t), @aish [@ = ain]
Being [noun]............ ka:?in
Being [verb]............ ka:?in
I was.........................ุ > kuntu
He was......................ุ > ka:na
They were.................ุ > ka:nu: (masc.)
I am.......................... ุ > a-ku:nu
You are..................... ุ > ta-ku:na (masc.)
He is........................  .il est > ya-ku:nu
They are.....................Ils sont > ya-ku:nu:na (masc.)
I will be......................saufa a-ku:nu
He will be...................saufa ya-ku:nu (masc.)
hey will be...............   saufa ya-ku:nu:na (masc.)
There was..................ka:na
There will be..............saufa ya-ku:nu
It existed....................ka:na

Finally ten short sentences. [please put the 'existence' word in brackets]

Example; The girl [is] a student.
The girl is a student...........................     T,a:libun al ja:riyatu.
The boy is being kind..............................T,ayyibun al ghula:mu.
 The girl is running quickly.....................Ta-rkud,u al  al ja:riyatu bi sun@atin.
The boy will be handsome..................... Ya-ku:nu ajma:lu al ghula:mu.
The man was a doctor....................         Ka:na t,abi:bun ar rajulu.
I believe in the existence of atoms.........Authiqo bi kauni 'dh dharra:ti.
Life exists on earth...........……….         Ya-ku:nu al @aishu fi: 'l-ardhi.

I like being a student..................……….Astah,ibbu al @aisha 't, t,a:libi.
I enjoy living my life....................………Astah,ibbu @aishi:.
I love him/her with my whole 'Being.'….Uh,ibbu hu / ha: bi kulla nafsi:.

As with the other languages, corrections and criticisms are welcome. All the more so, actually, as I am no longer good at Arabic.

Jean-Paul G. POTET