8.2 As if, as though

We use these expressions to express how a situation seems, e.g.:

It looks as if/as though it's going to rain. (Parece como si fuera a llover.)

She talks as if/as though she understands all about it. (Habla como si entendiera la situación.)

In talking about present or future time, the verb following as if and as though is present if the appearance is (probably) real, but past if the appearance is not, e.g.:

She talks as if/as though she understands all about it. (Habla como si entendiera la situación.)

She talks as if/as though she understood all about it. (Habla como si entendiera la situación.)

The man in black is giving orders as if/as though he's in charge. (El hombre de negro da órdenes como si fuera el encargado.)

The man in black is giving orders as if/as though he was in charge. (El hombre de negro da órdenes como si fuera el encargado.)