I can signalise you can signalise he can signalise we can signalise you can signalise they can signalise
V-ing form
I can be signalising you can be signalising he can be signalising we can be signalising you can be signalising they can be signalising
Perfect
I can have signalised you can have signalised he can have signalised we can have signalised you can have signalised they can have signalised
V-ing perfect
I can have been signalising you can have been signalising he can have been signalising we can have been signalising you can have been signalising they can have been signalising
Negation
Simple form
I can't signalise you can't signalise he can't signalise we can't signalise you can't signalise they can't signalise
V-ing form
I can't be signalising you can't be signalising he can't be signalising we can't be signalising you can't be signalising they can't be signalising
Perfect
I can't have signalised you can't have signalised he can't have signalised we can't have signalised you can't have signalised they can't have signalised
V-ing perfect
I can't have been signalising you can't have been signalising he can't have been signalising we can't have been signalising you can't have been signalising they can't have been signalising
Interrogative form
Simple form
can I signalise? can you signalise? can he signalise? can we signalise? can you signalise? can they signalise?
V-ing form
can I be signalising? can you be signalising? can he be signalising? can we be signalising? can you be signalising? can they be signalising?
Perfect
can I have signalised? can you have signalised? can he have signalised? can we have signalised? can you have signalised? can they have signalised?
V-ing perfect
can I have been signalising? can you have been signalising? can he have been signalising? can we have been signalising? can you have been signalising? can they have been signalising?
Interro-negative form
Simple form
can't I signalise? can't you signalise? can't he signalise? can't we signalise? can't you signalise? can't they signalise?
V-ing form
can't I be signalising? can't you be signalising? can't he be signalising? can't we be signalising? can't you be signalising? can't they be signalising?
Perfect
can't I have signalised? can't you have signalised? can't he have signalised? can't we have signalised? can't you have signalised? can't they have signalised?
V-ing perfect
can't I have been signalising? can't you have been signalising? can't he have been signalising? can't we have been signalising? can't you have been signalising? can't they have been signalising?