Grammar exercise: teacher or pupil writes a sentence (from the grid) on the backside of the board. Pupils guess by making sentences. If he/she does one part rightly -it's a hit. If he/she does two parts - it's a double hit with all three parts - it's a triple hit.The winner writes down a new sentence on the board. As it is a grammar exercise: if there is a grammar mistake in the sentence, it's neither hit/double hit nor triple hit.