Grammar References:

Grammar References: Here are some grammar aids and places to go for help and practice.

Articles: English has three articles:a, an and the. "A" and "an" are called indefinite articles and "the" is called a definite article.

Purdue University's OWL site has a nice overview and some exercises.

Gerunds and Infinitives:

Infinitives: see Gerunds and Infinitives

Verb Forms: There are twelve verb forms as shown in the table:

Aspect:

Time:
Simple Progressive Perfect Perfect Progressive

Present He does his homework (every night). He is doing hishomework (now)
He has done his

homework (already).
He has been doing his homework (since 9 otclock.).

Past
He did his homework

(last night).
He was doing hishomework (at 8pm.) He had done his homework (by 8 pm.). He had been doing his home work for twohours (before I called).

Future He is going to /will do his homework (tomorrow). He will be doing his homework (tomorrow). He will have done his homework (by tomorrow). He will have been doing his homeworktwo hours when I call.

Writing References: Here are some writing references and places to go for help and practice.

Topic Sentence: The topic sentence

Unity:

Developement

Controlling Idea

Aspect: Time:	Simple	Progressive	Perfect	Perfect Progressive
Present	He does his homework (every night).	He is doing hishomework (now)	He has done his homework (already).	He has been doing his homework (since 9 otclock.).
Past	He did his homework (last night).	He was doing hishomework (at 8pm.)	He had done his homework (by 8 pm.).	He had been doing his home work for twohours (before I called).
Future	He is going to /will do his homework (tomorrow).	He will be doing his homework (tomorrow).	He will have done his homework (by tomorrow).	He will have been doing his homeworktwo hours when I call.