Causal clauses & verbal nouns

The conjugation because to build a causal sentence can in its simplest way also be created by concatenating two main clauses and by using the word ஏனென்றால்ēṉeṉṟāl in between.

Another — more common — way to form a causal sentence is by making use of verbal nouns together with the "instrumental" case of nouns.

The verbal noun is similar to making adjectives a noun. If you add -அது-atu to the verb stem + tense suffix, you get the nominalized verb.


செய்cey + கின்றுkiṉṟu + அதுatu = செய்கின்றதுceykiṉṟatu

செய்cey + த்t + அதுatu = செய்ததுceytatu

செய்cey + வ்v + அதுatu = செய்வதுceyvatu

The negative form is created by adding ஆத்āt + அதுatu to the verb stem:


செய்cey + ஆத்āt + அதுatu = செய்யாததுceyyātatu

It's hard to translate these phrases directly into English as there is no similar grammatical rule but you can compare it to something like "to jump" becoming "the jumping".

However, in Tamil, "the jumping" can be in three different tenses: "the jumping", "the jumped", "the to jump". And it can even existing in the negated form: "the not jumping".

Now with this knowledge, if you want to build a causal sentence, you use this verbal noun (which is now not a verb but a noun) in the third case by using ஆல்āl for the sub-clause.


வருvaru = verb to come

வருvaru + கின்றுkiṉṟu + அதுatu = வருகின்றதுvarukiṉṟatu ⇒ verbal noun the coming

வருகின்றதுvarukiṉṟatu + ஆல்āl = வருகின்றதால்varukiṉṟatāl ⇒ verbal noun in instrumental because of the coming.

If you create a causal sentence using the concept, the subclause with the reason will always be the first part:

நான் வருகின்றதால், மாறனும் வருகின்றான்.nāṉ varukiṉṟatāl, māṟaṉum varukiṉṟāṉ.Because I am coming, Maaran is also coming.