I could familiarise you could familiarise he could familiarise we could familiarise you could familiarise they could familiarise
V-ing form
I could be familiarising you could be familiarising he could be familiarising we could be familiarising you could be familiarising they could be familiarising
Perfect
I could have familiarised you could have familiarised he could have familiarised we could have familiarised you could have familiarised they could have familiarised
V-ing perfect
I could have been familiarising you could have been familiarising he could have been familiarising we could have been familiarising you could have been familiarising they could have been familiarising
Negation
Simple form
I could not familiarise you could not familiarise he could not familiarise we could not familiarise you could not familiarise they could not familiarise
V-ing form
I could not be familiarising you could not be familiarising he could not be familiarising we could not be familiarising you could not be familiarising they could not be familiarising
Perfect
I could not have familiarised you could not have familiarised he could not have familiarised we could not have familiarised you could not have familiarised they could not have familiarised
V-ing perfect
I could not have been familiarising you could not have been familiarising he could not have been familiarising we could not have been familiarising you could not have been familiarising they could not have been familiarising
Interrogative form
Simple form
could I familiarise? could you familiarise? could he familiarise? could we familiarise? could you familiarise? could they familiarise?
V-ing form
could I be familiarising? could you be familiarising? could he be familiarising? could we be familiarising? could you be familiarising? could they be familiarising?
Perfect
could I have familiarised? could you have familiarised? could he have familiarised? could we have familiarised? could you have familiarised? could they have familiarised?
V-ing perfect
could I have been familiarising? could you have been familiarising? could he have been familiarising? could we have been familiarising? could you have been familiarising? could they have been familiarising?
Interro-negative form
Simple form
could I not familiarise? could you not familiarise? could he not familiarise? could we not familiarise? could you not familiarise? could they not familiarise?
V-ing form
could I not be familiarising? could you not be familiarising? could he not be familiarising? could we not be familiarising? could you not be familiarising? could they not be familiarising?
Perfect
could I not have familiarised? could you not have familiarised? could he not have familiarised? could we not have familiarised? could you not have familiarised? could they not have familiarised?
V-ing perfect
could I not have been familiarising? could you not have been familiarising? could he not have been familiarising? could we not have been familiarising? could you not have been familiarising? could they not have been familiarising?