～てはIf, With, Since, Because

The Japanese grammar points "ては" (as for, when, if) and "たって" (even if, no matter) both express conditional statements, but they are not used interchangeably. The term "ては" suggests a regular or repeated action and is often used to indicate that something happens sequentially or repetitively given a certain situation. On the other hand, the "たって" structure is used to refute or dismiss a hypothesis, and implies a level of defiance or determination in the face of certain circumstances. It emphasizes that despite a certain condition being met, the result or situation will not change.

The phrase ようでは or ようじゃ is typically used to express concern or dissatisfaction with a situation, often implying that if something doesn't change, the outcome will not be good. On the other hand, the phrase ては is often used to present a condition or situation and draw attention to its resulting consequences or implications, which could either be negative or positive, depending on the context.

The main difference between the two lies in the nature of actions. ていては reflects the continuation or repetition of an action, indicating the consequences if one keeps doing something. It often implies a sense of warning or advice about the result of a persistent action. On the other hand, ては is a more general conditional indicating that if a certain condition is met, a certain result follows. This can imply either positive or negative outcomes based on the context, and can also demonstrate reasoning by showing cause and effect.