According to Douglas Giancoli's fifth edition of "Physics," an interference pattern can only occur between waves sharing the same properties. For example, a light wave colliding with a sound wave cannot create an interference pattern.
You can easily see interference patterns when you throw two rocks into a pond. When the second rock hits the water, its ripple waves collide with the first rock's ripples to create a new pattern.
Interference can be constructive or destructive. Constructive interference occurs with waves "in phase"--when the troughs and crests of the two waves align. In a destructive interference pattern, the troughs and crests of the waves don't align, as they're "out of phase."