За основу исследования взято словос

За основу исследования взято словосочетание "they can" и его синтаксические варианты: "they cannot", "can they", "can't they", "they can't".

Результаты (английский) 1:

For the study is taken the phrase "they can" and its syntactic variants: "they cannot", "can they" they "can't", "they can't."

Результаты (английский) 2:

The basis of the research taken the phrase "they can" and its syntactical variants: "they can not", "can they", "can not they", "they can not".