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