Certain English questions alter the basic SVO word order pattern or introduce new elements into the sentence structure. In a YES-NO question, a "helping verb" such as be, have, will, can, should, etc.

In English, our sentences usually operate using a similar pattern: subject, verb, then object. The nice part about this type of structure is that it lets your reader easily know who is doing the ...

Theories on how people build grammatical structure in real time are often based on English. In sentences such as 'I have watched a documentary', the noun 'documentary' immediately follows the verb.