Theoretically, …
In theory, …
In principle, …
an abstract argument
a model of or for …
According to the model, …
… may be inferred from …
… has a strong theoretical basis
Hypothetically, …
a hypothetical question
to construct a hypothesis
to formulate a hypothesis
The hypothesis can be stated as follows:
A hypothesis could be made that …
… has led to the hypothesis that … is caused by …
a working hypothesis
the underlying hypothesis that …
an alternative hypothesis or proposition that …
a series of hypotheses predicting …
to evaluate the hypothesis that …
to test the hypothesis that …
We tested the hypothesis by …
We are able to refine our hypothesis
to verify a hypothesis
the hypothesis is confirmed by …
… supports the hypothesis that …
… refutes or disproves the hypothesis that …
Possibility
It is entirely possible that …
It is possible that …
One possibility is …
One possible theory is that …
A further possibility is …
Yet another possibility is …
the possibility of …
the likelihood of …
One way of viewing …
It is not inconceivable that …
It is possible to argue that …
a possible explanation for …
It may well be the case that …
It seems likely that …
… more likely
… less likely
… may be associated with …
whether … is attributable to …
There are a number of possible outcomes
Next: Suggestion and speculation
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