shine
The German word 'scheinen' is used to express the action of shining, often in the context of light or brightness. It can be used as a verb in various tenses and forms, and can also be used in conjunction with other words to express more specific types of shining, such as 'im Sonnenschein' (in the sunshine).
They seem to be very tired.
The phrase uses 'scheinen' in the context of conveying a seeming or apparent state of something, in this case, tiredness. The verb 'sein' (to be) is used after 'zu', forming the structure 'scheinen zu sein' (seem to be).
The sun is shining brightly.
This sentence employs 'scheinen' to depict the action of shining. It specifically refers to the natural phenomenon of the sun emitting light. The adverb 'hell' (brightly) is used to provide more information about how the sun is shining.
It seems that it will rain tomorrow.
In this instance, 'scheinen' is used to express a supposition or possibility, specifically about the future weather. The conjunction 'dass' (that) introduces the dependent clause 'es morgen regnen wird' (it will rain tomorrow), giving more insight into what 'seems' to be the case.