Infinitive: when do an active form and a passive form mean the same? When does an infinitive in either the active or the passive do without difference in meaning? Is there a simple rule? A 1. this problem is too difficult to resolve. 2. this problem is too difficult to be resolved. 3. this problem is too difficult for John to resolve. 4. this problem is too difficult for John to be resolved. B 1. do you have anything to say about this question? 2. do you have anything to be said about this question? C 1. do you have anything to be taken to your sister? 2. do you have anything to take to your sister?