poilu

n. logic, good-sense, the ability to perceive and/or utilize empirical thinking in an efficient train of thought.

This word has a special meaning to Tulvans. It is in fact used about sentences or thoughts which have sense or are 'logical', but its connotations can also go as far as to use it to assess someone's sanity. Many Tulvans will think not being logical in speech is a kind of madness. This is not to say that they are always logical, but upper classes are disgusted to engage on futile conversations and often will look down to those who do. The motto of the Society of Tulvan Grammarians is:

TUYLV LEVI POILU SIV
Think and speak with logic

A praise among Tulvan scientists is to say that something is 'poilui' or 'logical', as in 'well-formulated according to the rules of logic'. While the academia lingers on in this belief, the youth are starting to think 'ilipoilu' and outside the box, with varying degrees of achievements. The famous phrase 'that is not logical' rendered in Tulvan as:

Ëv si ilipoilu or ëv ilipoilu

Is close to calling someone a liar.

Weak Tenses

Weak tenses are a group of tenses and aspects in the lines of the Strong tenses, but with the difference that the root is not modified and a prefix is used which is k(V)- being (V) = any vowel. So we have in this category the Habitual aspect, the Perfective aspect, the Future tense and the Conditional. The Habitual takes the prefix ki- and denotes an action that continues through time, a habit or an ongoing action.

e.g.:
Kilev kwam. I see (everyday), I am seeing, I am used to seeing.
Kitulv kwam. I think (everyday), I am thinking, I am used to thinking.
Këvud kwam. I know (everyday), I am knowing, I am used to knowing.
Kithark kwam. I use (everyday), I am using, I am used to using.
Kiprum kwam. I speak (everyday), I am speaking, I am used to speaking.

These can be further developed into the past tense habitual, so:

Kiluev kwam. I used to see, I was seeing.
Kitaulv kwam. I used to think, I was thiking.
Këvaud kwam. I used to know, I was knowing.
Kithuark kwam. I used to use, I was using.
Kipraum kwam. I used to speak, I was speaking.

Then we have the Perfective aspect, which indicates an action that has been completed or done already. The prefix is ka- so:

Kalev kwam. I have seen.
Katulv kwam. I have thought.
Kaëvud kwam. I have known.
Kathark kwam. I have used.
Kaprum kwam. I have spoken.

Then the Future tense, which uses the prefix ku-, so:

Kulev kwam. I will see.
Kutulv kwam. I will think.
Kuëvud kwam. I will know.
Kuthark kwam. I will use.
Kuprum kwam. I will speak.

Finally, in the Weak Tenses, we have the Conditional, which takes the prefix kya-, so:

Kyalev kwam. I would see.
Kyatulv kwam. I would think.
Kyaëvud kwam. I would know.
Kyathark kwam. I would use.
Kyaprum kwam. I would speak.

The conditional construction needs a special post in Tulvan, which will come very soon.