The problem statement is one of many such statements that usually come up in the minds of non-native speakers. Others are like  :

It's 6 only.

Or It's only 6.

I wonder sometimes do native speakers even care for such detail.

Or

Sometimes I wonder do native speakers even care for such detail.

There may be a possibility that to me it may seem all these examples having a common issue but to an expert there may be more than one problem. Would really appreciate a detailed answer. I can add on more examples, if required.

Problem statement:

I just can say Great!

or:

I can just say Great!

The problem statement is one of many such statements that usually come up in the minds of non-native speakers. Others are like:

It's 6 only.

Or:

It's only 6.

One more:

I wonder sometimes do native speakers even care for such detail.

Or:

Sometimes I wonder do native speakers even care for such detail.

There may be a possibility that to me it may seem all these examples having a common issue but to an expert there may be more than one problem. Would really appreciate a detailed answer. I can add on more examples, if required.