Anonymous  +  619771 Wed, 24 Dec 08 03:26 AM Hi, could we have a present and a present perfect tenses in one sentence? He finished/did his first assignment but he hasn't done the second assignment. Anonymous Tenses, Present Tenses, Present Perfect, Sentences

	Clive  +  619879 Wed, 24 Dec 08 06:00 AM Hi,  could we have a present and a present perfect tenses in one sentence? He finished/did his first assignment but he hasn't done the second assignment. The first part in your example is Simple Past tense, not Present tense. I'd like your sentence better if you specified the time of the Simple Past action, eg He finished/did his first assignment last Friday, but he hasn't done the second assignment. Or you could make this time clear in a previous sentence. Anyway, the general answer is that you can have all kinds of tenses in a single sentence, as long as they  express your meaning correctly. eg I speak Chinese and I have studied it for 20 years. eg Yesterday I cooked rice, today I am cooking chicken and tomorrow I will cook pancakes. Best wishes, Clive Clive Joined on Thu, Oct 28 2004 Canada Veteran Member 29,581 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 Tenses, Present Tenses, Simple Past, Present Perfect, Past Tenses, Sentences, Countries, Asia, China, Simple Tenses