I could await you could await he could await we could await you could await they could await
V-ing form
I could be awaiting you could be awaiting he could be awaiting we could be awaiting you could be awaiting they could be awaiting
Perfect
I could have awaited you could have awaited he could have awaited we could have awaited you could have awaited they could have awaited
V-ing perfect
I could have been awaiting you could have been awaiting he could have been awaiting we could have been awaiting you could have been awaiting they could have been awaiting
Negation
Simple form
I couldn't await you couldn't await he couldn't await we couldn't await you couldn't await they couldn't await
V-ing form
I couldn't be awaiting you couldn't be awaiting he couldn't be awaiting we couldn't be awaiting you couldn't be awaiting they couldn't be awaiting
Perfect
I couldn't have awaited you couldn't have awaited he couldn't have awaited we couldn't have awaited you couldn't have awaited they couldn't have awaited
V-ing perfect
I couldn't have been awaiting you couldn't have been awaiting he couldn't have been awaiting we couldn't have been awaiting you couldn't have been awaiting they couldn't have been awaiting
Interrogative form
Simple form
could I await? could you await? could he await? could we await? could you await? could they await?
V-ing form
could I be awaiting? could you be awaiting? could he be awaiting? could we be awaiting? could you be awaiting? could they be awaiting?
Perfect
could I have awaited? could you have awaited? could he have awaited? could we have awaited? could you have awaited? could they have awaited?
V-ing perfect
could I have been awaiting? could you have been awaiting? could he have been awaiting? could we have been awaiting? could you have been awaiting? could they have been awaiting?
Interro-negative form
Simple form
couldn't I await? couldn't you await? couldn't he await? couldn't we await? couldn't you await? couldn't they await?
V-ing form
couldn't I be awaiting? couldn't you be awaiting? couldn't he be awaiting? couldn't we be awaiting? couldn't you be awaiting? couldn't they be awaiting?
Perfect
couldn't I have awaited? couldn't you have awaited? couldn't he have awaited? couldn't we have awaited? couldn't you have awaited? couldn't they have awaited?
V-ing perfect
couldn't I have been awaiting? couldn't you have been awaiting? couldn't he have been awaiting? couldn't we have been awaiting? couldn't you have been awaiting? couldn't they have been awaiting?