Subordinate connectors function to introduce information that contrasts or differs from information given in the same sentence. This class of contrastive connectors can be placed either at the beginning, middle or the end of a sentence, separated from the rest of the sentence by a comma.

Before the main clause:

Although it is twice as far away from the Sun as Mercury, Venus is the planet with the hottest surface temperature day or night.

After the main clause:

Venus is the planet with the hottest surface temperature day or night, although it is twice as far away from the Sun as Mercury.

Within the main clause:

Venus, although twice as far away from the Sun as Mercury, is the planet with the hottest surface temperature day or night.

 

Similar to the contrastive sentence connectors, the subordinators can be divided into two groups.

  1. Concessive subordinators: signal that something is unexpected or surprising in view of what has been said earlier.
    (although..., .... and (even)though... ,...)

  2. Adversative subordinators: introduce or point out differences between two different things.
    (While... ,... and Whereas... ,...)