表示“打算”,“即将”,“肯定”或“命令”时,可以用be going to这个情态动词,be going to有现在式和过去式两种形式,如: They are going to have the entrance hall painted white. The ice is going to crack. I am not going to have this. I am going to oppose the proposal. My sister is going to have a baby. It is going to rain. Now you are going to hurry. 如果把be going to变为一般疑问句,只要把be动词提到主语前即可,所以你给出的句子要改成: Am I going to play football? 希望我能帮助你解疑释惑.