Halliday & Matthiessen (2014: 271):
Certain circumstances are common with particular types of attribution. For example, circumstances of Cause, Matter and Angle are common with ‘mental’ qualities as Attribute
- [Cause:] I did get angry with him;
- [Matter:] so I think we have to be a bit sensible about what we are doing;
- [Angle:] it’s all Greek to me;