Collocations for assume - verb

automatically, naturally
I automatically assumed that you knew about this.

reasonably, safely
I think we can safely assume that this situation will continue.

commonly, generally, usually, widely
It is generally assumed that they were lovers.

implicitly

can, might
tend to
be fair to, be reasonable to, be safe to
It is reasonable to assume that the economy will continue to improve.

be a mistake to, be wrong to
be easy to
It's all too easy to assume that people know what they are doing.

let us assume
Let us assume for a moment that the plan succeeds.

Assume is used with these nouns as the subject:
argument, forecast

Assume is used with these nouns as the object:
accent, alias, authority, burden, character, command, control, dominance, duty, existence, expression, familiarity, form, identity, importance, leadership, liability, name, nationality, obligation, office, ownership, position, posture, power, presidency, responsibility, risk, role, shape, significance, stance, superiority, throne, worst