Halliday & Matthiessen (2014: 525-6):
The non-finites are typically perfective, e.g.
[verbal]
||| I tell people || to say thank you. |||
||| And then, finally, I was invited || to create the interior of the United States Pavilion at the New York World’s Fair in 1964. |||
[mental]
||| Of course I want || Labour to win || but I don’t think || they will. |||
||| Do you want || me to explain that? |||
However, a few verbs take imperfective projections, e.g. she suggested talking it over.