Infinitive complement

• follow: Dick would have withheld him, had he been in time; as it was, he was fain to follow.

• see: This frightened heart is fain To see restored again My Charioteer, in Krishna's kind disguise.

• do: So that in effect he was fain to do all things himself.

Modifies a noun

• ti: Add to this, that He says to Owein, Pell o Fôn fain wyt ti, dwythwal werin &c.