Unique rules when forming that grammar are highlighted like this
Example sentences follow these rules too!
Joining and Nesting Markers:
Verb[た/る] - means that dictionary form and ta form are accepted.
Verb[causative[て]] - means て form of the causative form of the verb.
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使用域一般
物
Information
(A) [volitional] ものなら (B) is a phrase expressing the opinion of the speaker that possibly if situation (A) happens, the negative result (B) will follow.
In (A), phrases showing extreme examples of something like でも、万が一 or expressions like ちょっと、うっかり、もし are common. (B) often ends with phrases of conjecture, like かもしれない、だろう、はず.