Tiempos para fissure Present participle:
fissuring
Present:
fissure (3.person: fissures)
Past:
fissured
Future:
will fissure
Present conditional:
would fissure
Present Perfect:
have fissured (3.person: has fissured)
Past Perfect:
had fissured
Future Perfect:
will have fissured
Past conditional:
would have fissured