Selam

I wanna know about (ise) ??

thankx in advance =D

"ise" is like "if" in english. we have a word "eğer" meaning "if" but it isn´t really recessary, only ise -se/-sa enough.

if you want to write/say "ise" seperately, you use "ise"; if you want to add it to a verb, you use -se or -sa.

çalışırsam geçerim. : if i study, i will pass (the exam.)

çalışır isem geçerim. : same meaning

eğer çalışırsam geçerim. : same meaning

yağmur yağarsa ıslanırız.
yağmur yağar ise ıslanırız.
eğer yağmur yağar ise ıslanırız.

if it rains, we´ll get wet. all 3 same...

ise-m
ise-n
ise

ise-k
ise-niz
-ler ise

1. Conditional "ise" ---> it is written seperately with verbs but this  is not very common usage. Instead, people tend to attach it onto verbs. 

Yağmur yağar ise şemsiyeni al.

If it rains take your umbrella.

 * When it is attached to a verb/word, "i" is not added.

Yağmur yağarsa şemsiyeni al.

* With words ;

Bir kız güzel ise kolaylıkla koca bulur.

If a girl is beautiful she could find a husband easily.

Bir kız güzelse kolaylıkla koca bulur.

Suffix for conditional mood -SA [SE],

 In old Turkish that suffix was in -sar, -ser form. Later , "r" dropped and we are left with-sa,-se and it was started to be used for  two moods [ optative and conditional]

 Because , two moods are expressed with the same morpheme,  this suffix seemed to have doubled functionally and called as  " optative-conditional suffix " [ Dilek-Şart eki ] in language books. 

2. Conjunction "ise"  ----> This " ise " is used for the functions of " comparison" and "contradistinction".

- Onlar yukarıda, biz ise aşağıdaydık. ---> They were upstairs but we were downstairs.

upstairs X downstairs  ----> contradistinction

- Evin içi sıcak dışarısı ise soğuktu. ---> Inside the house is warm but the outside was cold. 

Comparing "inside the house" with "outside the house "

- Berkant sudan korkar, Ali ise çok iyi yüzücüdür.

Berkant is afraid of water whereas Ali is a very good swimmer.

Comparing Berkant and Ali. 

To identify the conditional -se [sa] and optative -se [sa] , there are some tips :

Şart kipi ve Dilek kipi cümlelerini tanımanın bazı ipuçları vardır.

* Verb with conditional -se doesnt make sense on its own. It has to be tied with other verb and sentence.

Onlar gelirse ---> Here , it says " If they come" which does NOT sound a complete and meaningful.

Onlar gelirse bir toplantı düzenleriz. --> If they come, we will [would] organize a meeting.

Now it is complete.

* Conditional -se in aorist form is used alot.

Onlar  gel + ir  + se

* Conditional -se can take " Eğer " at the begining of it.

Eğer telefon ederse açma. ---> If he/she phones [you], don´t answer.

* Optative -se conveys a wish or a desire for something you want [wanted] to do, or you want [wanted] it to happen.

Keşke ona yardım etseler. ---> I wish they would help him/her.

Keşke Türkçe konuşabilsem ---> I wish I could speak Turkish.

* Optative -se can take " Keşke " at the begining of it.

Keşke bugün yağmur yağsa. ---> I wish it would rain today.