We’d better stay here a little longer he turns up unexpectedly.
It is your own faultyou are so tired. You oughtn’t to have stayed up so late.
As teachers we should concern with what is said, not what we think.
To pay to see that movie will be foolishyou can see it on TV for nothing.
I’ll be away for a few days. If anything happens, telephone meemail me to save money.
—Johnthis week? —No. He’s on holiday.