İ think i understand how to use it and the meaning when its added to verbs, but i find myself a bit confused when it comes to ad and sıfat ´nouns and adjectives´

ad/ sıfat + sA + kişi eki

ad/ sıfat  değil + se + kişi eki

Eğer şişmansanız rejim ve spor yapmalısınız. İf you are fat you should make deit and play sport.

Çok yorgun değilsen arabayla biraz daha gezelim. Let´s practice driving the car a little if you are not very tierd.

İ guess i got those well,

But this, i dont understand what is the DA

İs it past , or is it de state ?

ad + DA + (y) sA + kişi eki

ad + DA   değil / yoksa + sA + kişi eki

Ps: For şart with verbs and more you can find it here

http://www.turkishclass.com/forumTitle_7888

http://www.turkishclass.com/forumTitle_30240

Both of them past also state.

Past :

He came . O gel-di.

State :

Also he came. O da geldi.

Ne sen neDE o. Neither you nor he.

State :

He´s at house. O ev-de.

He´s sleeping at couch. Koltuk-ta uyuyor.

He´s at work. O iş-te.

Thank you,

So in here its both past and DA state, or just DA state ?

Ayşe´ye telefon et, eğer evdeyse bu akşam onu ziyarete gidelim.

Selen işte değilse (yoksa) mutlaka evdedir.

It´s the noun state, the past is -di, not -da.

Yes, thank you, all clear now about it.

İts 2 cases when we use it with nouns and adjectives,

Regular one, and with DA state one.

İ guess i mixed things up, i was thinking about how to form ´şart´ sA in past with nouns, like.

İf i were a doctor, i would have earned more money.

Can we use this form ?

-se/-sa is a suffix for verbs

The one used with nouns (you are asking about) is a mutated form of the one used with old Turkish ermek verb (means to be).

Over time er-se has become:

erse > ise > -se (both ise and -se can be used in today´s Turkish)

similarly

erdi > idi > -di

ermiş> imiş > -miş

ergen > iken > -ken

So

ise or -se/-sa = if ... am/are/is

güzel ise or güzelse = if it/he/she is beautiful

iyi ise or iyiyse = if it/he/she is good

... idi ise or ... idiyse = if ... was/were ...

güzel idi ise or güzeldi ise  or güzeldiyse = if it/he/she was beautiful

iyi idi ise or iyiydi ise or iyiydiyse = if it/he/she was good

Now be careful the past form above cannot be used for hipothetical sentences. We insead need to use olmak for that purpose.

So

güzel olsa idi or güzel olsaydı = if it/he/she were beautiful

iyi olsa idi or iyi olsaydı = if it/he/she were good

So for "If I were a doctor" you need to say:

Doktor olsam or doktor olsa idim or doktor olsaydım

past is not -da past is -dı/di

 Thank you si

Then we use olmak in that case

But dont we use past with nouns ?

Ad/ sıfat + DI ?

İn that case how do we use şart ?

Yes caliptrix, i know

Seems i got very confused because i was late and have much to study with little time in a head of me and felt the whole world on my shoulders so thought or saw it ad past form...donna know how

I think sometimes we can use "[ad] idiyse" but I don´t think that is the step you are supposed to learn right now. Forgive me if I look priggish, but I think sometimes you ask things you will never need to use

A very rare usage (It was very difficult to find this example to me)

Eğer gelen kişi sen idiysen, Ahmet gelmedi demektir.

If the person who came was you, that means Ahmet didn´t come

"sen idiysen" or "sendiysen" you may change the word "sen" by a name

Eğer gelen kişi Ahmet idiyse, Mehmet gelmedi demektir.

Eğer getirdikleri eşya masa idiyse, sandalyeler götürülmemiş demektir.

If the thing they brought here was the table, then it means chairs weren´t brought

 Glad that we dont have to use it

When you study you find other question bombing into your head

So when i was studying Şart i saw that

We can add zaman to Şart when we use it with verbs

And when i came to nouns, i thought if we can use it in past too or not ?

Thats it