Tiempos para disallow Present participle:
disallowing
Present:
disallow (3.person: disallows)
Past:
disallowed
Future:
will disallow
Present conditional:
would disallow
Present Perfect:
have disallowed (3.person: has disallowed)
Past Perfect:
had disallowed
Future Perfect:
will have disallowed
Past conditional:
would have disallowed