in English is:

surveying

Mutations

Soft:dirfesuriaeth
Nasal:nhirfesuriaeth
Aspirate:thirfesuriaeth

Use

y tirfesuriaeth hwn
fy nhirfesuriaeth i
dy dirfesuriaeth di
ei dirfesuriaeth ef/o
ei thirfesuriaeth hi
ein tirfesuriaeth ni
eich tirfesuriaeth chi
eu tirfesuriaeth nhw/hwy
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