| Form | Example | |
|---|---|---|
| Modals | may, might, could, would, should | Smoking causes cancer. |
| Impersonal | It seems / appears · There is evidence to suggest | Children today are lazy. |
| Frequency | generally, typically, often, tend to | The economy will collapse. |
| Avoid | absolutes: all, never, always, prove | Smoking is widely linked to cancer. |