Turkish Conditional Copula -se / ise: 'if it is'
How the Turkish conditional copula works — the clitic -(y)se that puts a noun or adjective under 'if', its two-way vowel harmony, the -y- buffer after a vowel as in hastaysa, the person endings, the existentials varsa and yoksa, and the free-standing word ise.
Ekle ·
The conditional copula puts a noun or adjective under an 'if' — 'if he is a teacher', 'if she is ill' — and it harmonises two ways with the last vowel of the predicate.
What the conditional copula does
Turkish has no separate verb "to be" to make conditional. A clitic does the work, glued straight onto the predicate: öğretmen "teacher" becomes öğretmense "if he is a teacher", and hasta "ill" becomes hastaysa "if she is ill". One ending, and its exact spelling depends on the last sound of the word it joins.
This is the copula on a noun or adjective, so it says that something is the case, not that it happens. müsait "available" gives müsaitsen "if you are available", and the existential var "there is" gives varsa "if there is". Wherever English opens with "if ... is", Turkish folds the "if" and the "is" into this one ending.
Two-way harmony and the buffer
The clitic vowel copies the front or back quality of the last vowel of the predicate. Front vowels — e, i, ö, ü — take -se, so öğretmen gives öğretmense. Back vowels — a, ı, o, u — take -sa, so var gives varsa.
| Last vowel | After a consonant | After a vowel |
|---|---|---|
| e · i · ö · ü | -se | -yse |
| a · ı · o · u | -sa | -ysa |
When the predicate ends in a vowel, a buffer -y- slides in so the two vowels never meet: hasta becomes hastaysa and iyi becomes iyiyse. That buffered ending is the third column above — -yse and -ysa are simply -se and -sa with the glide in front. After a consonant there is nothing to keep apart, so öğretmen takes -se straight away, giving öğretmense.
Only the front/back split counts here; whether the vowel is rounded plays no part. That is why the clitic has two vowel shapes rather than four — -se after a front vowel and -sa after a back one.
Person endings after the clitic
The person endings come after the clitic, in the ordinary series. On the vowel-final stem hasta the word runs stem, buffer, clitic, then the person marker, so hasta with the second-person ending -n gives hastaysan "if you are ill". The third person adds nothing, so hastaysa on its own is "if she is ill".
| Pronoun | Ending | Full form |
|---|---|---|
| ben | -m | hastaysam |
| sen | -n | hastaysan |
| o | -Ø | hastaysa |
| biz | -k | hastaysak |
| siz | -nız | hastaysanız |
| onlar | -lar | hastaysalar |
The endings harmonise with the stem as well. On the back-vowel stem hasta they surface as -nız and -lar, giving hastaysanız "if you (plural) are ill" and hastaysalar "if they are ill".
Five worked forms
Read each of these as a clause on its own — the "if" and the "is" are already inside the word.
| Turkish | Parts | English |
|---|---|---|
| öğretmense | öğretmen + se | if he is a teacher |
| hastaysa | hasta + y + sa | if she is ill |
| iyiyse | iyi + y + se | if it is good |
| varsa | var + sa | if there is / if there are |
| müsaitsen | müsait + se + n | if you are available |
The copula against the verbal conditional
This "if" sits on a noun or adjective and asks whether something is the case. A separate construction, the verbal conditional, sits on a verb and asks whether something happens. öğretmense is "if he is a teacher", while gelirse "if he comes" and gelse "if he came" are built on the verb gelmek "to come". So öğretmense answers "if he IS X", and gelirse answers "if he DOES X".
Existential there is and there isn't
The existential words var "there is" and yok "there isn't" take the clitic directly, with no buffer, since both end in a consonant: varsa "if there is" and yoksa "if there isn't".
yoksa has a second, everyday life as a connector meaning "otherwise" or "or else": one clause, then yoksa, then the consequence of not meeting it. The same form warns about the alternative rather than stating a condition.
| Turkish | Parts | English |
|---|---|---|
| varsa | var + sa | if there is / if there are |
| yoksa | yok + sa | if there isn't; otherwise, or else |
The free word beside the attached ending
The clitic has a free-standing twin, the word ise. Written apart from the predicate, öğretmen ise means the same as the joined öğretmense — "if he is a teacher". The attached form is the everyday choice; the separate ise is more formal and literary, and because it is its own word it never takes the buffer -y-.
| Turkish | Parts | English |
|---|---|---|
| öğretmen ise | öğretmen + ise | if he is a teacher |
Frequently asked questions
- What does the conditional copula add to a word?
- It puts the predicate under an 'if'. Added to a noun or adjective, the clitic means "if X is": öğretmen "teacher" gives öğretmense "if he is a teacher", and hasta "ill" gives hastaysa "if she is ill". The vowel follows harmony — -se after a front vowel, -sa after a back one.
- When does the buffer -y- appear?
- Only after a vowel. A predicate ending in a vowel takes the buffer so two vowels never meet: hasta gives hastaysa and iyi gives iyiyse. After a consonant there is no buffer, so öğretmen gives öğretmense and var gives varsa. The buffer-less hastasa and the intrusive öğretmenyse are not Turkish.
- How is öğretmense different from gelirse?
- öğretmense is the copula: it sits on a noun or adjective and says whether something is the case — "if he is a teacher". gelirse is the verbal conditional: it sits on a verb and says whether something happens — "if he comes". One asks "if he is X", the other "if he does X".
- What is the difference between ise and the attached ending?
- They mean the same thing. The clitic joins the predicate, as in öğretmense; the free word ise stands apart, as in öğretmen ise. Both are "if he is a teacher". The joined form is the everyday choice, and the separate ise is more formal. Because ise is its own word, it never takes the buffer -y-.