To illustrate this use of φαμι, Bergk quotes a fragment preserved by Plutarch, which may have been written by Sappho:
. . . . . ἔγω φᾶμι ἰοπλόκων
Μοισᾶν εὖ λάχεμεν.
I think I have a goodly portion in the violet weaving Muses.
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Ηράμαν μὲν εγω σέθεν, Ἄτθι, πάλαι πότα.
I loved thee once, Atthis, long ago.
I loved thee,—hark, one tenderer note than all—
Atthis, of old time, once—one low long fall,
Sighing—one long low lovely loveless call,