Universal 1432:

Original: If in a language the perfect lacks auxiliary verb, then the auxiliary verb does not have present tense form.
Standardized: IF there is no auxiliary verb in the perfect, THEN the auxiliary verb does not have present tense form.
Keywords: verb, auxiliary, tense, present, perfect
Domain: inflection, syntax
Type: no genuine implication; rather: provided that
Status: achronic
Quality: statistical
Basis: unspecified
Source: Serebrennikov 1974: 301

FP