Present Tenses

• (+) he-she-it + -s/-es walk/s go/es

• (?) he-she-it ‘does’ Does he work?

I-you-we-they ‘do’ Do they work?

* (-) he-she-it doesn’t He doesn’t work. I-you-we-they don’t They don’t work.

TO BE + -ING

(to be: am, is, are)

e.g. (+) He is working. (-) He isn’t working. (?) Is he working?

have or has + past participle (3)

e.g. (+) He has worked (-) He hasn’t worked (?) Has he worked?

• (+) Regular or irregular verbse.g. He worked yesterday.

• (-) Didn’t + infinitive verb e.g. He didn’t work yesterday.

• (?) Did + infinitive verbe.g. Did he work yesterday?

Be + going to + infinitive

(+) e.g. He is going to work tomorrow.

(-) e.g. He isn’t going to work tomorrow.

(?) e.g. Is he going to work tomorrow?

Long activity in progress when a past event happened

e.g. He was working when his telephone rang.