Anonymous  +  165797 Sat, 03 Dec 05 09:24 PM When do the banks open? The answer can be:     I don't know when the banks are open. Is the answer ok?    My doubt is why do I use infinitive after to be in this sentence?  Is there some rule about  that situation  I don't know?   Thanks,     Anonymous

	Diamondrg  +  165824 Sun, 04 Dec 05 12:06 AM 1- when do the banks open? I don't know when the banks open. 2- when are the banks open? I don't know when the banks are open. both seems grammatically correct. in 1 "open" is a verb but in 2 it's an adjective. a native can tell whether there is a difference in meaning.  Diamondrg Joined on Fri, Dec 2 2005 Contributing Member 1,043 Verbs

	Clive  +  165864 Sun, 04 Dec 05 01:04 AM Hi, When do the banks open? The answer can be:     I don't know when the banks are open. Is the answer ok?    Yes. My doubt is why do I use infinitive after to be in this sentence? 'Open' here is an adjective, not an infinitive.  If you want to use 'open' as a verb, say 'I don't know when the banks open'. Best wishes, Clive Clive Joined on Thu, Oct 28 2004 Canada Veteran Member 29,657 El tango argentino es un pensamiento triste que se puede bailar (The tango argentino is a sad thought which can be danced) Enrique Santos Discépolo Verbs